diff --git a/src/main/java/com/skcraft/launcher/builder/ClientFileCollector.java b/src/main/java/com/skcraft/launcher/builder/ClientFileCollector.java
index db1b220..c2f6fd4 100644
--- a/src/main/java/com/skcraft/launcher/builder/ClientFileCollector.java
+++ b/src/main/java/com/skcraft/launcher/builder/ClientFileCollector.java
@@ -71,7 +71,9 @@ public class ClientFileCollector extends DirectoryWalker {
     }
 
     public static DirectoryBehavior getDirectoryBehavior(@NonNull String name) {
-        if (name.equals("_OPTIONAL")) {
+        if (name.startsWith(".")) {
+            return DirectoryBehavior.SKIP;
+        } else if (name.equals("_OPTIONAL")) {
             return DirectoryBehavior.IGNORE;
         } else if (name.equals("_SERVER")) {
             return DirectoryBehavior.SKIP;