diff --git a/plugin.yml b/plugin.yml
index ce5d3708..bea70f34 100644
--- a/plugin.yml
+++ b/plugin.yml
@@ -3,5 +3,5 @@ name: NoCheatPlugin
 author: Evenprime
 
 main: cc.co.evenprime.bukkit.nocheat.NoCheatPlugin
-version: 0.4.2
+version: 0.4.3
 
diff --git a/src/cc/co/evenprime/bukkit/nocheat/NoCheatPluginPlayerListener.java b/src/cc/co/evenprime/bukkit/nocheat/NoCheatPluginPlayerListener.java
index f8805742..a237a125 100644
--- a/src/cc/co/evenprime/bukkit/nocheat/NoCheatPluginPlayerListener.java
+++ b/src/cc/co/evenprime/bukkit/nocheat/NoCheatPluginPlayerListener.java
@@ -392,11 +392,19 @@ public class NoCheatPluginPlayerListener extends PlayerListener {
     	else if(types[w.getBlockTypeIdAt(l.getBlockX(), l.getBlockY(), l.getBlockZ())] == BlockType.LADDER || 
     			types[w.getBlockTypeIdAt(l.getBlockX(), l.getBlockY()+1, l.getBlockZ())] == BlockType.LADDER)
     		return true;
-    	// check if he is standing "in" an unknown block (we give him the benefit of a doubt and see that as a legit move)
-    	else if(types[w.getBlockTypeIdAt(values[0], values[2], values[3])] == BlockType.UNKNOWN ||
-    		 types[w.getBlockTypeIdAt(values[1], values[2], values[3])] == BlockType.UNKNOWN ||
-    		 types[w.getBlockTypeIdAt(values[0], values[2], values[4])] == BlockType.UNKNOWN ||
-    		 types[w.getBlockTypeIdAt(values[1], values[2], values[4])] == BlockType.UNKNOWN)
+    	// check if he is standing "in" an block that's potentially solid (we give him the benefit of a doubt and see that as a legit move)
+    	// If it is not legit, the MC server already has a safeguard against that (You'll get "xy moved wrongly" on the console in that case)
+    	else if(types[w.getBlockTypeIdAt(values[0], values[2], values[3])] != BlockType.NONSOLID ||
+    		 types[w.getBlockTypeIdAt(values[1], values[2], values[3])] != BlockType.NONSOLID||
+    		 types[w.getBlockTypeIdAt(values[0], values[2], values[4])] != BlockType.NONSOLID ||
+    		 types[w.getBlockTypeIdAt(values[1], values[2], values[4])] != BlockType.NONSOLID)
+    		return true;
+    	// check if his head is "stuck" in an block that's potentially solid (we give him the benefit of a doubt and see that as a legit move)
+    	// If it is not legit, the MC server already has a safeguard against that (You'll get "xy moved wrongly" on the console in that case)
+    	else if(types[w.getBlockTypeIdAt(values[0], values[2]+1, values[3])] != BlockType.NONSOLID ||
+    		 types[w.getBlockTypeIdAt(values[1], values[2]+1, values[3])] != BlockType.NONSOLID ||
+    		 types[w.getBlockTypeIdAt(values[0], values[2]+1, values[4])] != BlockType.NONSOLID ||
+    		 types[w.getBlockTypeIdAt(values[1], values[2]+1, values[4])] != BlockType.NONSOLID)
     		return true;
     	else
     		return false;