diff --git a/src/Gui/DAGView/DAGModelGraph.cpp b/src/Gui/DAGView/DAGModelGraph.cpp
index ffdb339a53..944d22df63 100644
--- a/src/Gui/DAGView/DAGModelGraph.cpp
+++ b/src/Gui/DAGView/DAGModelGraph.cpp
@@ -20,6 +20,10 @@
  *                                                                         *
  ***************************************************************************/
 
+#include "PreCompiled.h"
+#ifndef _PreComp_
+#endif
+
 #include "DAGModelGraph.h"
 
 using namespace Gui;