diff --git a/src/Mod/Part/Gui/DlgPrimitives.cpp b/src/Mod/Part/Gui/DlgPrimitives.cpp
index f8d7109002..42bc341a5e 100644
--- a/src/Mod/Part/Gui/DlgPrimitives.cpp
+++ b/src/Mod/Part/Gui/DlgPrimitives.cpp
@@ -31,6 +31,7 @@
 #include <Geom_Circle.hxx>
 #include <Geom_TrimmedCurve.hxx>
 #include <Python.h>
+#include <QMessageBox>
 #include <Inventor/SoPickedPoint.h>
 #include <Inventor/events/SoMouseButtonEvent.h>
 #endif
diff --git a/src/Mod/Part/Gui/DlgPrimitives.h b/src/Mod/Part/Gui/DlgPrimitives.h
index 4bda9c260f..d4f0c81311 100644
--- a/src/Mod/Part/Gui/DlgPrimitives.h
+++ b/src/Mod/Part/Gui/DlgPrimitives.h
@@ -30,6 +30,7 @@
 #include <Mod/Part/Gui/ui_Location.h>
 
 class gp_Ax2;
+class SoPickedPoint;
 class SoEventCallback;
 
 namespace App { class Document; }
diff --git a/src/Mod/Part/Gui/ViewProviderHelixParametric.cpp b/src/Mod/Part/Gui/ViewProviderHelixParametric.cpp
index 14678a1400..444ba78489 100644
--- a/src/Mod/Part/Gui/ViewProviderHelixParametric.cpp
+++ b/src/Mod/Part/Gui/ViewProviderHelixParametric.cpp
@@ -25,6 +25,7 @@
 
 #ifndef _PreComp_
 # include <Python.h>
+# include <QMenu>
 #endif
 
 #include <Gui/Application.h>