diff --git a/Pmodules/modbuild.in b/Pmodules/modbuild.in
index adcb5be..b489513 100755
--- a/Pmodules/modbuild.in
+++ b/Pmodules/modbuild.in
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!@BASH@
 #
 # The following build specific variables are set and used in libpbuild.bash:
 #       ARGS