diff --git a/releng/org.eclipse.cdt.releng/master/build.properties b/releng/org.eclipse.cdt.releng/master/build.properties
index 6734694f743..e5e47453c91 100644
--- a/releng/org.eclipse.cdt.releng/master/build.properties
+++ b/releng/org.eclipse.cdt.releng/master/build.properties
@@ -82,7 +82,7 @@ configs=\
     & win32,win32,x86
 
 outputUpdateJars=true
-groupConfiguration=true
+groupConfigurations=true
 
 #Arguments to send to the zip executable
 zipargs=