diff --git a/src/App/ApplicationPy.cpp b/src/App/ApplicationPy.cpp
index b6d477d0d..bc0e0c928 100644
--- a/src/App/ApplicationPy.cpp
+++ b/src/App/ApplicationPy.cpp
@@ -205,11 +205,14 @@ PyObject* Application::sNewDocument(PyObject * /*self*/, PyObject *args,PyObject
 {
     char *docName = 0;
     char *usrName = 0;
-    if (!PyArg_ParseTuple(args, "|ss", &docName, &usrName))     // convert args: Python->C
-        return NULL;                             // NULL triggers exception
+    if (!PyArg_ParseTuple(args, "|etet", "utf-8", &docName, "utf-8", &usrName))
+        return NULL;
 
     PY_TRY {
-        return GetApplication().newDocument(docName, usrName)->getPyObject();
+        App::Document* doc = GetApplication().newDocument(docName, usrName);
+        PyMem_Free(docName);
+        PyMem_Free(usrName);
+        return doc->getPyObject();
     }PY_CATCH;
 }
 
diff --git a/src/Mod/Draft/importOCA.py b/src/Mod/Draft/importOCA.py
index e3c4a51cd..0eb043f41 100644
--- a/src/Mod/Draft/importOCA.py
+++ b/src/Mod/Draft/importOCA.py
@@ -221,8 +221,8 @@ def decodeName(name):
 def open(filename):
     docname=os.path.split(filename)[1]
     doc=FreeCAD.newDocument(docname)
-    if (docname[-4:] == "gcad"): doc.Label = decodeName(docname[:-5])
-    else: doc.Label = decodeName(docname[:-4])
+    if (docname[-4:] == "gcad"): doc.Label = docname[:-5]
+    else: doc.Label = docname[:-4]
     parse(filename,doc)
     doc.recompute()
 
diff --git a/src/Mod/Draft/importSVG.py b/src/Mod/Draft/importSVG.py
index f8f42391f..2f9062f51 100644
--- a/src/Mod/Draft/importSVG.py
+++ b/src/Mod/Draft/importSVG.py
@@ -1176,7 +1176,7 @@ def getContents(filename,tag,stringmode=False):
 def open(filename):
         docname=os.path.split(filename)[1]
         doc=FreeCAD.newDocument(docname)
-        doc.Label = decodeName(docname[:-4])
+        doc.Label = docname[:-4]
         parser = xml.sax.make_parser()
         parser.setFeature(xml.sax.handler.feature_external_ges, False)
         parser.setContentHandler(svgHandler())
diff --git a/src/Mod/Material/importFCMat.py b/src/Mod/Material/importFCMat.py
index 9df0ce980..ab6f9cc78 100644
--- a/src/Mod/Material/importFCMat.py
+++ b/src/Mod/Material/importFCMat.py
@@ -21,6 +21,7 @@
 #***************************************************************************
 
 import FreeCAD, Material
+import os
 
 __title__="FreeCAD material card importer"
 __author__ = "Juergen Riegel"
@@ -46,7 +47,7 @@ def open(filename):
     "called when freecad wants to open a file"
     docname = os.path.splitext(os.path.basename(filename))[0]
     doc = FreeCAD.newDocument(docname)
-    doc.Label = decode(docname)
+    doc.Label = docname
     FreeCAD.ActiveDocument = doc
     read(filename)
     return doc