diff --git a/src/Mod/Sketcher/App/SketchGeometryExtensionPy.xml b/src/Mod/Sketcher/App/SketchGeometryExtensionPy.xml
index f3cf557101..c5c8ce4e1f 100644
--- a/src/Mod/Sketcher/App/SketchGeometryExtensionPy.xml
+++ b/src/Mod/Sketcher/App/SketchGeometryExtensionPy.xml
@@ -31,5 +31,13 @@
         </Documentation>
         <Parameter Name="InternalType" Type="String"/>
     </Attribute>
+    <Attribute Name="Blocked" ReadOnly="false">
+        <Documentation>
+            <UserDocu>
+                Sets/returns whether the geometry is blocked or not.
+            </UserDocu>
+        </Documentation>
+        <Parameter Name="Blocked" Type="Boolean"/>
+    </Attribute>
   </PythonExport>
 </GenerateModel>
diff --git a/src/Mod/Sketcher/App/SketchGeometryExtensionPyImp.cpp b/src/Mod/Sketcher/App/SketchGeometryExtensionPyImp.cpp
index 7eb665745a..3d5bfb2cf9 100644
--- a/src/Mod/Sketcher/App/SketchGeometryExtensionPyImp.cpp
+++ b/src/Mod/Sketcher/App/SketchGeometryExtensionPyImp.cpp
@@ -114,6 +114,15 @@ void SketchGeometryExtensionPy::setInternalType(Py::String arg)
     throw Py::ValueError("Argument is not a valid internal geometry type.");
 }
 
+Py::Boolean SketchGeometryExtensionPy::getBlocked(void) const
+{
+    return Py::Boolean(getSketchGeometryExtensionPtr()->testGeometryMode(GeometryMode::Blocked));
+}
+
+void SketchGeometryExtensionPy::setBlocked(Py::Boolean arg)
+{
+    getSketchGeometryExtensionPtr()->setGeometryMode(GeometryMode::Blocked, arg);
+}
 
 PyObject *SketchGeometryExtensionPy::getCustomAttributes(const char* /*attr*/) const
 {