diff --git a/src/Mod/Mesh/App/MeshPyImp.cpp b/src/Mod/Mesh/App/MeshPyImp.cpp
index 45091110a..8b745b4ff 100644
--- a/src/Mod/Mesh/App/MeshPyImp.cpp
+++ b/src/Mod/Mesh/App/MeshPyImp.cpp
@@ -149,7 +149,7 @@ PyObject*  MeshPy::write(PyObject *args)
 {
     const char* Name;
     char* Ext=0;
-    char* ObjName;
+    char* ObjName=0;
     if (!PyArg_ParseTuple(args, "s|ss",&Name,&Ext,&ObjName))
         return NULL;