diff --git a/tests/run_tests.sh.in b/tests/run_tests.sh.in
index db53cdc..7e87742 100755
--- a/tests/run_tests.sh.in
+++ b/tests/run_tests.sh.in
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 BINDIR="${CMAKE_BINARY_DIR}/tests/"
 RET=0