diff --git a/src/Gui/SoQtOffscreenRendererPy.cpp b/src/Gui/SoQtOffscreenRendererPy.cpp
index aebe39802e..552ca02059 100644
--- a/src/Gui/SoQtOffscreenRendererPy.cpp
+++ b/src/Gui/SoQtOffscreenRendererPy.cpp
@@ -20,6 +20,7 @@
  *                                                                         *
  ***************************************************************************/
 
+#include "PreCompiled.h"
 #include <Base/Interpreter.h>
 
 #include "SoQtOffscreenRendererPy.h"