diff --git a/src/Mod/Part/App/OpenCascadeAll.h b/src/Mod/Part/App/OpenCascadeAll.h
index b4b8afc233..ec0ee1a14a 100644
--- a/src/Mod/Part/App/OpenCascadeAll.h
+++ b/src/Mod/Part/App/OpenCascadeAll.h
@@ -380,6 +380,7 @@
 #include <GeomFill_AppSurf.hxx>
 #include <GeomFill_Line.hxx>
 #include <GeomFill_SectionGenerator.hxx>
+#include <GeomFill_Generator.hxx>
 #include <GeomFill_ApproxStyle.hxx>
 #include <GeomFill_CorrectedFrenet.hxx>
 #include <GeomFill_CurveAndTrihedron.hxx>