diff -r 535eb0b8bd9d -r e96aa2e3231e svghmi/svghmi.py
--- a/svghmi/svghmi.py	Fri Jul 12 11:58:22 2019 +0200
+++ b/svghmi/svghmi.py	Wed Jul 17 09:44:11 2019 +0200
@@ -61,7 +61,6 @@
         if from_project_path is not None:
             shutil.copyfile(self._getSVGpath(from_project_path),
                             self._getSVGpath())
-        return PythonFileCTNMixin.OnCTNSave(self, from_project_path)
 
     def CTNGenerate_C(self, buildpath, locations):
         """