diff --git a/src/Mod/Part/App/PrimitiveFeature.cpp b/src/Mod/Part/App/PrimitiveFeature.cpp
index e95e1bc7b4..fdb9630bd2 100644
--- a/src/Mod/Part/App/PrimitiveFeature.cpp
+++ b/src/Mod/Part/App/PrimitiveFeature.cpp
@@ -573,12 +573,9 @@ Prism::Prism(void)
     ADD_PROPERTY_TYPE(Polygon, (6.0), "Prism", App::Prop_None, "Number of sides in the polygon, of the prism");
     ADD_PROPERTY_TYPE(Circumradius, (2.0), "Prism", App::Prop_None, "Circumradius (centre to vertex) of the polygon, of the prism");
     ADD_PROPERTY_TYPE(Height, (10.0f), "Prism", App::Prop_None, "The height of the prism");
-    ADD_PROPERTY_TYPE(FirstAngle, (0.0f), "Prism", App::Prop_None, "Angle in first direction");
-    ADD_PROPERTY_TYPE(SecondAngle, (0.0f), "Prism", App::Prop_None, "Angle in second direction");
     Polygon.setConstraints(&polygonRange);
-    static const App::PropertyQuantityConstraint::Constraints angleConstraint = { -89.99999, 89.99999, 1.0 };
-    FirstAngle.setConstraints(&angleConstraint);
-    SecondAngle.setConstraints(&angleConstraint);
+
+    PrismExtension::initExtension(this);
 }
 
 short Prism::mustExecute() const
@@ -589,10 +586,6 @@ short Prism::mustExecute() const
         return 1;
     if (Height.isTouched())
         return 1;
-    if (FirstAngle.isTouched())
-        return 1;
-    if (SecondAngle.isTouched())
-        return 1;
     return Primitive::mustExecute();
 }
 
@@ -621,11 +614,7 @@ App::DocumentObjectExecReturn *Prism::execute(void)
         mkPoly.Add(gp_Pnt(v.x,v.y,v.z));
         BRepBuilderAPI_MakeFace mkFace(mkPoly.Wire());
         // the direction vector for the prism is the height for z and the given angle
-        BRepPrimAPI_MakePrism mkPrism(mkFace.Face(),
-            gp_Vec(Height.getValue() * tan(Base::toRadians<double>(FirstAngle.getValue())),
-                   Height.getValue() * tan(Base::toRadians<double>(SecondAngle.getValue())),
-                   Height.getValue()));
-        this->Shape.setValue(mkPrism.Shape());
+        this->Shape.setValue(makePrism(Height.getValue(), mkFace.Face()));
     }
     catch (Standard_Failure& e) {
         return new App::DocumentObjectExecReturn(e.GetMessageString());
diff --git a/src/Mod/Part/App/PrimitiveFeature.h b/src/Mod/Part/App/PrimitiveFeature.h
index 9f8f150802..c32009903c 100644
--- a/src/Mod/Part/App/PrimitiveFeature.h
+++ b/src/Mod/Part/App/PrimitiveFeature.h
@@ -27,6 +27,7 @@
 #include <App/PropertyUnits.h>
 #include "PartFeature.h"
 #include "AttachExtension.h"
+#include "PrismExtension.h"
 
 namespace Part
 {
@@ -199,7 +200,8 @@ public:
     //@}
 };
 
-class PartExport Prism : public Primitive
+class PartExport Prism : public Primitive,
+                         public PrismExtension
 {
     PROPERTY_HEADER(Part::Prism);
 
@@ -209,8 +211,6 @@ public:
     App::PropertyIntegerConstraint Polygon;
     App::PropertyLength Circumradius;
     App::PropertyLength Height;
-    App::PropertyAngle FirstAngle;
-    App::PropertyAngle SecondAngle;
 
     /** @name methods override feature */
     //@{