diff --git a/source/net/yacy/repository/FilterEngine.java b/source/net/yacy/repository/FilterEngine.java
index c17b978a4..4b11f75f3 100644
--- a/source/net/yacy/repository/FilterEngine.java
+++ b/source/net/yacy/repository/FilterEngine.java
@@ -36,7 +36,7 @@ public class FilterEngine {
 
 	protected enum listTypes { type1 };
 	
-	protected class FilterEntry {
+	protected class FilterEntry implements Comparable<FilterEntry> {
 		public String path;
 		public EnumSet<listTypes> types;
 		
@@ -44,6 +44,11 @@ public class FilterEngine {
 			this.path = path;
 			this.types = types;
 		}
+
+		@Override
+		public int compareTo(FilterEntry fe) {
+			return this.path.compareToIgnoreCase(fe.path);
+		}
 	}
 	
     protected HashARC<DigestURI, EnumSet<listTypes>> cachedUrlHashs = null;