diff --git a/debian/pybm b/debian/pybm
index d806eedd..95e61e54 100644
--- a/debian/pybm
+++ b/debian/pybm
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 cd /usr/share/pybitmessage
-python bitmessagemain.py
+exec python bitmessagemain.py