diff --git a/build/org.eclipse.cdt.managedbuilder.core/build.properties b/build/org.eclipse.cdt.managedbuilder.core/build.properties
index 16f386ca452..b04f9e00d61 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/build.properties
+++ b/build/org.eclipse.cdt.managedbuilder.core/build.properties
@@ -1 +1 @@
-source.New\ Library = src/
+source.mngbuildcore.jar = src/