diff --git a/src/Mod/Part/App/BSplineCurveBiArcs.cpp b/src/Mod/Part/App/BSplineCurveBiArcs.cpp
index 74f5ecdaaf..ecf5a130dd 100644
--- a/src/Mod/Part/App/BSplineCurveBiArcs.cpp
+++ b/src/Mod/Part/App/BSplineCurveBiArcs.cpp
@@ -29,17 +29,17 @@
 
 #include "PreCompiled.h"
 #ifndef _PreComp_
-# include <gp_Ax2.hxx>
-# include <gp_Pln.hxx>
-# include <gp_Circ.hxx>
 # include <GC_MakeArcOfCircle.hxx>
-# include <Geom_BSplineCurve.hxx>
+# include <gp_Ax2.hxx>
+# include <gp_Circ.hxx>
+# include <gp_Pln.hxx>
 #endif
 
-#include "Geometry.h"
 #include "BSplineCurveBiArcs.h"
+#include "Geometry.h"
 #include "Tools.h"
 
+
 using Part::BSplineCurveBiArcs;
 using Part::GeomBSplineCurve;
 using Part::Geometry;
diff --git a/src/Mod/Part/App/BSplineCurveBiArcs.h b/src/Mod/Part/App/BSplineCurveBiArcs.h
index 1c3281f9fd..53c7997199 100644
--- a/src/Mod/Part/App/BSplineCurveBiArcs.h
+++ b/src/Mod/Part/App/BSplineCurveBiArcs.h
@@ -27,12 +27,13 @@
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 // POSSIBILITY OF SUCH DAMAGE.
 
-
 #ifndef PART_BSPLINECURVEBIARCS_H
 #define PART_BSPLINECURVEBIARCS_H
 
+#include <list>
+
 #include <Mod/Part/PartGlobal.h>
-#include <Geom_BSplineCurve.hxx>
+
 
 namespace Part {
 
diff --git a/src/Mod/Part/App/BSplineCurvePyImp.cpp b/src/Mod/Part/App/BSplineCurvePyImp.cpp
index a892e5eb03..9b5f76d9fe 100644
--- a/src/Mod/Part/App/BSplineCurvePyImp.cpp
+++ b/src/Mod/Part/App/BSplineCurvePyImp.cpp
@@ -20,35 +20,32 @@
  *                                                                         *
  ***************************************************************************/
 
-
 #include "PreCompiled.h"
 #ifndef _PreComp_
+# include <cmath>
 # include <Geom_BSplineCurve.hxx>
-# include <GeomAPI_PointsToBSpline.hxx>
 # include <GeomAPI_Interpolate.hxx>
+# include <GeomAPI_PointsToBSpline.hxx>
 # include <GeomConvert_BSplineCurveToBezierCurve.hxx>
-# include <Standard_PrimitiveTypes.hxx>
 # include <gp_Pnt.hxx>
-# include <TColStd_Array1OfReal.hxx>
+# include <Precision.hxx>
 # include <TColgp_Array1OfPnt.hxx>
 # include <TColgp_Array1OfVec.hxx>
 # include <TColgp_HArray1OfPnt.hxx>
 # include <TColStd_Array1OfInteger.hxx>
-# include <TColStd_HArray1OfReal.hxx>
 # include <TColStd_Array1OfReal.hxx>
 # include <TColStd_HArray1OfBoolean.hxx>
-# include <Precision.hxx>
-# include <cmath>
+# include <TColStd_HArray1OfReal.hxx>
 #endif
 
-#include <Base/VectorPy.h>
 #include <Base/GeometryPyCXX.h>
+#include <Base/VectorPy.h>
 
-#include "OCCError.h"
-#include "Geometry.h"
 #include "BSplineCurvePy.h"
 #include "BSplineCurvePy.cpp"
 #include "BezierCurvePy.h"
+#include "OCCError.h"
+
 
 using namespace Part;
 
diff --git a/src/Mod/Part/App/BSplineSurfacePyImp.cpp b/src/Mod/Part/App/BSplineSurfacePyImp.cpp
index bd831b87c7..6a773b235f 100644
--- a/src/Mod/Part/App/BSplineSurfacePyImp.cpp
+++ b/src/Mod/Part/App/BSplineSurfacePyImp.cpp
@@ -20,31 +20,28 @@
  *                                                                         *
  ***************************************************************************/
 
-
 #include "PreCompiled.h"
 #ifndef _PreComp_
-# include <Geom_BSplineCurve.hxx>
+//# include <Geom_BSplineCurve.hxx>
 # include <Geom_BSplineSurface.hxx>
-# include <Geom_BSplineCurve.hxx>
+# include <GeomAbs_Shape.hxx>
+# include <GeomAPI_PointsToBSplineSurface.hxx>
+# include <Precision.hxx>
+# include <TColgp_Array1OfPnt.hxx>
+# include <TColgp_Array2OfPnt.hxx>
 # include <TColStd_Array1OfReal.hxx>
 # include <TColStd_Array2OfReal.hxx>
 # include <TColStd_Array1OfInteger.hxx>
-# include <TColgp_Array1OfPnt.hxx>
-# include <TColgp_Array2OfPnt.hxx>
-# include <Precision.hxx>
-# include <GeomAPI_PointsToBSplineSurface.hxx>
-# include <GeomAbs_Shape.hxx>
 #endif
 # include <GeomFill_NSections.hxx>
 
 #include <Base/GeometryPyCXX.h>
 #include <Base/VectorPy.h>
 
-#include "OCCError.h"
-#include "Geometry.h"
-#include "BSplineCurvePy.h"
 #include "BSplineSurfacePy.h"
 #include "BSplineSurfacePy.cpp"
+#include "BSplineCurvePy.h"
+#include "OCCError.h"
 
 
 using namespace Part;