diff --git a/core/org.eclipse.cdt.core/build.properties b/core/org.eclipse.cdt.core/build.properties
index a56e9a35c40..f12ef58aad5 100644
--- a/core/org.eclipse.cdt.core/build.properties
+++ b/core/org.eclipse.cdt.core/build.properties
@@ -15,4 +15,5 @@ source.cdtcore.jar = build/,\
                      model/,\
                      src/,\
                      utils/,\
-                     parser/
+                     parser/,\
+                     dom/