diff --git a/src/Base/RotationPy.xml b/src/Base/RotationPy.xml
index 9e30199cf6..4bac43b9ae 100644
--- a/src/Base/RotationPy.xml
+++ b/src/Base/RotationPy.xml
@@ -73,7 +73,7 @@
 				</UserDocu>
 			</Documentation>
 		</Methode>
-                <Methode Name="toEuler" Const="true">
+        <Methode Name="toEuler" Const="true">
 			<Documentation>
 				<UserDocu>
 					toEuler(Vector) -> list
@@ -82,6 +82,14 @@
 				</UserDocu>
 			</Documentation>
 		</Methode>
+        <Methode Name="toMatrix" Const="true">
+			<Documentation>
+				<UserDocu>
+					toMatrix()
+					convert the rotation to a matrix representation
+				</UserDocu>
+			</Documentation>
+		</Methode>
         <Methode Name="isNull" Const="true">
 			<Documentation>
 				<UserDocu>
diff --git a/src/Base/RotationPyImp.cpp b/src/Base/RotationPyImp.cpp
index 98585530c3..e38985e50c 100644
--- a/src/Base/RotationPyImp.cpp
+++ b/src/Base/RotationPyImp.cpp
@@ -270,6 +270,15 @@ PyObject* RotationPy::toEuler(PyObject * args)
     return Py::new_reference_to(tuple);
 }
 
+PyObject* RotationPy::toMatrix(PyObject * args)
+{
+    if (!PyArg_ParseTuple(args, ""))
+        return NULL;
+    Base::Matrix4D mat;
+    getRotationPtr()->getValue(mat);
+    return new MatrixPy(new Matrix4D(mat));
+}
+
 PyObject* RotationPy::isSame(PyObject *args)
 {
     PyObject *rot;