diff --git a/source/de/anomic/search/Segment.java b/source/de/anomic/search/Segment.java
index b0ad82a6f..547c68d60 100644
--- a/source/de/anomic/search/Segment.java
+++ b/source/de/anomic/search/Segment.java
@@ -100,7 +100,7 @@ public class Segment {
         this.log = log;
         this.segmentPath = segmentPath;
         
-        this.merger = new IODispatcher(1, 1, writeBufferSize);
+        this.merger = new IODispatcher(2, 2, writeBufferSize);
         this.merger.start();
         
         this.termIndex = new IndexCell<WordReference>(