diff --git a/org.eclipse.ajdt.releng/build.properties b/org.eclipse.ajdt.releng/build.properties
index edc2a1f..f43546f 100644
--- a/org.eclipse.ajdt.releng/build.properties
+++ b/org.eclipse.ajdt.releng/build.properties
@@ -100,7 +100,7 @@
 # The value that will be prefixed to all version qualifiers
 # Use e34x for Eclispe 3.4 builds and e35x for 3.5 builds, etc
 # This value will be ignored if forceContextQualifier is set above or from the command line
-qualPrefix=e42x
+qualPrefix=e42x-RELEASE
 
 # upload properties
 upload.host=build.eclipse.org