diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/ejb/WeblogicDeploymentTool.java b/src/main/org/apache/tools/ant/taskdefs/optional/ejb/WeblogicDeploymentTool.java
index 841a610a0..3c5e721f7 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/ejb/WeblogicDeploymentTool.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/ejb/WeblogicDeploymentTool.java
@@ -505,6 +505,7 @@ public class WeblogicDeploymentTool extends GenericDeploymentTool {
                     }
                     
                     newJarStream = new JarOutputStream(new FileOutputStream(newWLJarFile));
+                    newJarStream.setLevel(0);
                     
                     //Copy files from old weblogic jar
                     for (Enumeration e = wlEntries.elements() ; e.hasMoreElements();)