diff --git a/src/App/PropertyLinks.cpp b/src/App/PropertyLinks.cpp
index 88652a7c2..5e00cdbb3 100644
--- a/src/App/PropertyLinks.cpp
+++ b/src/App/PropertyLinks.cpp
@@ -249,7 +249,9 @@ void PropertyLinkSub::setPyObject(PyObject *value)
     }
     else if (PyTuple_Check(value) || PyList_Check(value)) {
         Py::Sequence seq(value);
-        if (PyObject_TypeCheck(seq[0].ptr(), &(DocumentObjectPy::Type))){
+        if(seq.size() == 0)
+            setValue(NULL);
+        else if (PyObject_TypeCheck(seq[0].ptr(), &(DocumentObjectPy::Type))){
             DocumentObjectPy  *pcObj = (DocumentObjectPy*)seq[0].ptr();
             if (seq[1].isString()) {
                 std::vector<std::string> vals;
diff --git a/src/Mod/PartDesign/TestPartDesignApp.py b/src/Mod/PartDesign/TestPartDesignApp.py
index ec97a09fd..d90c2cd92 100644
--- a/src/Mod/PartDesign/TestPartDesignApp.py
+++ b/src/Mod/PartDesign/TestPartDesignApp.py
@@ -36,7 +36,7 @@ class PartDesignPadTestCases(unittest.TestCase):
 		TestSketcherApp.CreateSlotPlateSet(self.PadSketch)
 		self.Doc.recompute()
 		self.Pad = self.Doc.addObject("PartDesign::Pad","Pad")
-		self.Pad.Sketch = self.PadSketch
+		self.Pad.Profile = self.PadSketch
 		self.Doc.recompute()
 		self.failUnless(len(self.Pad.Shape.Faces) == 6)