diff --git a/DynmapCore/src/main/java/org/dynmap/common/DynmapServerInterface.java b/DynmapCore/src/main/java/org/dynmap/common/DynmapServerInterface.java
index 7fd4f584..7aebfe98 100644
--- a/DynmapCore/src/main/java/org/dynmap/common/DynmapServerInterface.java
+++ b/DynmapCore/src/main/java/org/dynmap/common/DynmapServerInterface.java
@@ -178,7 +178,6 @@ public abstract class DynmapServerInterface {
      * @return block ID, or -1 if chunk at given coordinate isn't loaded
      */
     public abstract int getBlockIDAt(String wname, int x, int y, int z);
-	
     /**
      * Checks if a sign is at a given coordinate in a given world (if chunk is loaded)
      * @param wname - world name
@@ -187,8 +186,7 @@ public abstract class DynmapServerInterface {
      * @param z - Z coordinate
      * @return 1 if a sign is at the location, 0 if it's not, -1 if the chunk isn't loaded
      */
-	public abstract int isSignAt(String wname, int x, int y, int z);
-	
+    public abstract int isSignAt(String wname, int x, int y, int z);
     /**
      * Get current TPS for server (20.0 is nominal)
      * @return ticks per second
diff --git a/DynmapCore/src/main/java/org/dynmap/markers/impl/MarkerSignManager.java b/DynmapCore/src/main/java/org/dynmap/markers/impl/MarkerSignManager.java
index 48274b6e..f19d916e 100644
--- a/DynmapCore/src/main/java/org/dynmap/markers/impl/MarkerSignManager.java
+++ b/DynmapCore/src/main/java/org/dynmap/markers/impl/MarkerSignManager.java
@@ -19,7 +19,7 @@ public class MarkerSignManager {
     private static MarkerSignManager mgr = null;
     private static DynmapCore plugin = null;
     private static String defSignSet = null;
-    
+
     private static class SignRec {
         String wname;
         int x, y, z;
@@ -147,7 +147,7 @@ public class MarkerSignManager {
                     iter.remove();
                 }
                 else {
-                    if(plugin.getServer().isSignAt(r.wname, r.x, r.y, r.z) == 0) {						
+                    if(plugin.getServer().isSignAt(r.wname, r.x, r.y, r.z) == 0) {
                         r.m.deleteMarker();
                         iter.remove();
                     }
diff --git a/forge-1.10.2/src/main/java/org/dynmap/forge_1_10_2/DynmapPlugin.java b/forge-1.10.2/src/main/java/org/dynmap/forge_1_10_2/DynmapPlugin.java
index 22464dad..7d6cc6ad 100644
--- a/forge-1.10.2/src/main/java/org/dynmap/forge_1_10_2/DynmapPlugin.java
+++ b/forge-1.10.2/src/main/java/org/dynmap/forge_1_10_2/DynmapPlugin.java
@@ -149,6 +149,9 @@ public class DynmapPlugin
     private static final int SIGNPOST_ID = 63;
     private static final int WALLSIGN_ID = 68;
 
+    private static final int SIGNPOST_ID = 63;
+    private static final int WALLSIGN_ID = 68;
+
     private static final String[] TRIGGER_DEFAULTS = { "blockupdate", "chunkpopulate", "chunkgenerate" };
 
     private static final Pattern patternControlCode = Pattern.compile("(?i)\\u00A7[0-9A-FK-OR]");
@@ -527,6 +530,20 @@ public class DynmapPlugin
             }
 		}
 
+        @Override
+        public int isSignAt(String wname, int x, int y, int z) {
+            int blkid = this.getBlockIDAt(wname, x, y, z);
+
+            if (blkid == -1)
+                return -1;
+
+            if((blkid == WALLSIGN_ID) || (blkid == SIGNPOST_ID)) {
+                return 1;
+            } else {
+                return 0;
+            }
+        }
+
         @Override
         public void scheduleServerTask(Runnable run, long delay)
         {
diff --git a/forge-1.11.2/src/main/java/org/dynmap/forge_1_11_2/DynmapPlugin.java b/forge-1.11.2/src/main/java/org/dynmap/forge_1_11_2/DynmapPlugin.java
index affba5f4..6f6ed7bd 100644
--- a/forge-1.11.2/src/main/java/org/dynmap/forge_1_11_2/DynmapPlugin.java
+++ b/forge-1.11.2/src/main/java/org/dynmap/forge_1_11_2/DynmapPlugin.java
@@ -535,6 +535,20 @@ public class DynmapPlugin
             }
 		}
 
+        @Override
+        public int isSignAt(String wname, int x, int y, int z) {
+            int blkid = this.getBlockIDAt(wname, x, y, z);
+
+            if (blkid == -1)
+                return -1;
+
+            if((blkid == WALLSIGN_ID) || (blkid == SIGNPOST_ID)) {
+                return 1;
+            } else {
+                return 0;
+            }
+        }
+
         @Override
         public void scheduleServerTask(Runnable run, long delay)
         {
diff --git a/forge-1.12.2/src/main/java/org/dynmap/forge_1_12_2/DynmapPlugin.java b/forge-1.12.2/src/main/java/org/dynmap/forge_1_12_2/DynmapPlugin.java
index e1b20341..7b037719 100644
--- a/forge-1.12.2/src/main/java/org/dynmap/forge_1_12_2/DynmapPlugin.java
+++ b/forge-1.12.2/src/main/java/org/dynmap/forge_1_12_2/DynmapPlugin.java
@@ -149,6 +149,9 @@ public class DynmapPlugin
     private static final int SIGNPOST_ID = 63;
     private static final int WALLSIGN_ID = 68;
 
+    private static final int SIGNPOST_ID = 63;
+    private static final int WALLSIGN_ID = 68;
+
     private static final String[] TRIGGER_DEFAULTS = { "blockupdate", "chunkpopulate", "chunkgenerate" };
 
     private static final Pattern patternControlCode = Pattern.compile("(?i)\\u00A7[0-9A-FK-OR]");
@@ -540,6 +543,20 @@ public class DynmapPlugin
             }
 		}
 
+        @Override
+        public int isSignAt(String wname, int x, int y, int z) {
+            int blkid = this.getBlockIDAt(wname, x, y, z);
+
+            if (blkid == -1)
+                return -1;
+
+            if((blkid == WALLSIGN_ID) || (blkid == SIGNPOST_ID)) {
+                return 1;
+            } else {
+                return 0;
+            }
+        }
+
         @Override
         public void scheduleServerTask(Runnable run, long delay)
         {
diff --git a/forge-1.13.2/src/main/java/org/dynmap/forge_1_13_2/DynmapPlugin.java b/forge-1.13.2/src/main/java/org/dynmap/forge_1_13_2/DynmapPlugin.java
index 01c83663..6d66b926 100644
--- a/forge-1.13.2/src/main/java/org/dynmap/forge_1_13_2/DynmapPlugin.java
+++ b/forge-1.13.2/src/main/java/org/dynmap/forge_1_13_2/DynmapPlugin.java
@@ -160,6 +160,9 @@ public class DynmapPlugin
     private static final int SIGNPOST_ID = 63;
     private static final int WALLSIGN_ID = 68;
 
+    private static final int SIGNPOST_ID = 63;
+    private static final int WALLSIGN_ID = 68;
+
     private static final String[] TRIGGER_DEFAULTS = { "blockupdate", "chunkpopulate", "chunkgenerate" };
 
     private static final Pattern patternControlCode = Pattern.compile("(?i)\\u00A7[0-9A-FK-OR]");
@@ -522,6 +525,11 @@ public class DynmapPlugin
 			return -1;
 		}
 
+        @Override
+        public int isSignAt(String wname, int x, int y, int z) {
+            return -1;
+        }
+
         @Override
         public void scheduleServerTask(Runnable run, long delay)
         {
diff --git a/forge-1.8.9/src/main/java/org/dynmap/forge_1_8_9/DynmapPlugin.java b/forge-1.8.9/src/main/java/org/dynmap/forge_1_8_9/DynmapPlugin.java
index 91024fd0..1f6eb8ae 100644
--- a/forge-1.8.9/src/main/java/org/dynmap/forge_1_8_9/DynmapPlugin.java
+++ b/forge-1.8.9/src/main/java/org/dynmap/forge_1_8_9/DynmapPlugin.java
@@ -144,6 +144,9 @@ public class DynmapPlugin
     private static final int SIGNPOST_ID = 63;
     private static final int WALLSIGN_ID = 68;
 
+    private static final int SIGNPOST_ID = 63;
+    private static final int WALLSIGN_ID = 68;
+
     private static final String[] TRIGGER_DEFAULTS = { "blockupdate", "chunkpopulate", "chunkgenerate" };
 
     private static final Pattern patternControlCode = Pattern.compile("(?i)\\u00A7[0-9A-FK-OR]");
@@ -511,6 +514,20 @@ public class DynmapPlugin
             }
 		}
 
+        @Override
+        public int isSignAt(String wname, int x, int y, int z) {
+            int blkid = this.getBlockIDAt(wname, x, y, z);
+
+            if (blkid == -1)
+                return -1;
+
+            if((blkid == WALLSIGN_ID) || (blkid == SIGNPOST_ID)) {
+                return 1;
+            } else {
+                return 0;
+            }
+        }
+
         @Override
         public void scheduleServerTask(Runnable run, long delay)
         {
diff --git a/forge-1.9.4/src/main/java/org/dynmap/forge_1_9_4/DynmapPlugin.java b/forge-1.9.4/src/main/java/org/dynmap/forge_1_9_4/DynmapPlugin.java
index 1f408598..0785333e 100644
--- a/forge-1.9.4/src/main/java/org/dynmap/forge_1_9_4/DynmapPlugin.java
+++ b/forge-1.9.4/src/main/java/org/dynmap/forge_1_9_4/DynmapPlugin.java
@@ -142,6 +142,9 @@ public class DynmapPlugin
     private static final int SIGNPOST_ID = 63;
     private static final int WALLSIGN_ID = 68;
 
+    private static final int SIGNPOST_ID = 63;
+    private static final int WALLSIGN_ID = 68;
+
     private static final String[] TRIGGER_DEFAULTS = { "blockupdate", "chunkpopulate", "chunkgenerate" };
 
     private static final Pattern patternControlCode = Pattern.compile("(?i)\\u00A7[0-9A-FK-OR]");
@@ -514,6 +517,20 @@ public class DynmapPlugin
             }
 		}
 
+        @Override
+        public int isSignAt(String wname, int x, int y, int z) {
+            int blkid = this.getBlockIDAt(wname, x, y, z);
+
+            if (blkid == -1)
+                return -1;
+
+            if((blkid == WALLSIGN_ID) || (blkid == SIGNPOST_ID)) {
+                return 1;
+            } else {
+                return 0;
+            }
+        }
+
         @Override
         public void scheduleServerTask(Runnable run, long delay)
         {
diff --git a/spigot/src/main/java/org/dynmap/bukkit/DynmapPlugin.java b/spigot/src/main/java/org/dynmap/bukkit/DynmapPlugin.java
index b01428cf..94121029 100644
--- a/spigot/src/main/java/org/dynmap/bukkit/DynmapPlugin.java
+++ b/spigot/src/main/java/org/dynmap/bukkit/DynmapPlugin.java
@@ -230,6 +230,22 @@ public class DynmapPlugin extends JavaPlugin implements DynmapAPI {
             return -1;
 		}
 
+        @Override
+        public int isSignAt(String wname, int x, int y, int z) {
+            World w = getServer().getWorld(wname);
+            if((w != null) && w.isChunkLoaded(x >> 4, z >> 4)) {
+                Block b = w.getBlockAt(x, y, z);
+                BlockState s = b.getState();
+
+                if (s instanceof Sign) {
+                    return 1;
+                } else {
+                    return 0;
+                }
+            }
+            return -1;
+        }
+
         @Override
         public void scheduleServerTask(Runnable run, long delay) {
             getServer().getScheduler().scheduleSyncDelayedTask(DynmapPlugin.this, run, delay);