diff --git a/Templates/cygwin-package.sh.in b/Templates/cygwin-package.sh.in
index 989446c58..8482e7e4d 100755
--- a/Templates/cygwin-package.sh.in
+++ b/Templates/cygwin-package.sh.in
@@ -1,3 +1,5 @@
+#!/bin/sh
+
 # this is a sample shell script used for building a cmake
 # based project for a cygwin setup package.