diff --git a/DroidFish/src/org/petero/droidfish/engine/LocalPipe.java b/DroidFish/src/org/petero/droidfish/engine/LocalPipe.java
index 799800c..7c98680 100644
--- a/DroidFish/src/org/petero/droidfish/engine/LocalPipe.java
+++ b/DroidFish/src/org/petero/droidfish/engine/LocalPipe.java
@@ -21,6 +21,12 @@ public class LocalPipe {
     }
 
     public final synchronized void addLine(String line) {
+        while (lines.size() > 10000) {
+            try {
+                wait(10);
+            } catch (InterruptedException e) {
+            }
+        }
         lines.add(line);
         notify();
     }