diff --git svgtoipe/svgtoipe.py svgtoipe/svgtoipe.py
index 45f3e98..9f2b5ed 100644
--- svgtoipe/svgtoipe.py
+++ svgtoipe/svgtoipe.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!__MP_PYTHON_BIN__
 # --------------------------------------------------------------------
 # convert SVG to Ipe format
 # --------------------------------------------------------------------