diff --git a/src/Mod/Sketcher/Gui/PreCompiled.h b/src/Mod/Sketcher/Gui/PreCompiled.h
index 7306be681..de7b683c7 100644
--- a/src/Mod/Sketcher/Gui/PreCompiled.h
+++ b/src/Mod/Sketcher/Gui/PreCompiled.h
@@ -33,7 +33,7 @@
 # define PartGuiExport  __declspec(dllimport)
 # define SketcherGuiExport __declspec(dllexport)
 #else // for Linux
-# define SketcherExport 
+# define SketcherExport 
 # define PartExport
 # define PartAppExport     
 # define PartGuiExport     
@@ -60,6 +60,7 @@
 #include <bitset>
 
 #ifdef FC_OS_WIN32
+# define NOMINMAX
 # include <windows.h>
 #endif
 
@@ -74,11 +75,11 @@
 #ifndef __InventorAll__
 # include <Gui/InventorAll.h>
 #endif 
-
-// Python
+
+// Python
 #include <Python.h>
 
-
+
 #endif //_PreComp_
 
 #endif // __PRECOMPILED_GUI__