diff --git a/projects/samskivert/src/java/com/samskivert/util/SerialExecutor.java b/projects/samskivert/src/java/com/samskivert/util/SerialExecutor.java
index ed6c729a..8875fd48 100644
--- a/projects/samskivert/src/java/com/samskivert/util/SerialExecutor.java
+++ b/projects/samskivert/src/java/com/samskivert/util/SerialExecutor.java
@@ -101,6 +101,7 @@ public class SerialExecutor
     {
         public ExecutorThread (ExecutorTask task)
         {
+            setDaemon(true);
             _task = task;
         }