diff --git a/src/main/java/com/threerings/getdown/tools/JarDiff.java b/src/main/java/com/threerings/getdown/tools/JarDiff.java
index d975284..3e7730b 100644
--- a/src/main/java/com/threerings/getdown/tools/JarDiff.java
+++ b/src/main/java/com/threerings/getdown/tools/JarDiff.java
@@ -190,7 +190,7 @@ public class JarDiff implements JarDiffCodes
             }
 
             jos.finish();
-            jos.close();
+//            jos.close();
 
         } catch (IOException ioE){
             throw ioE;