diff --git a/tests/run_test.sh b/tests/run_test.sh
index f2ea7d7..927c61d 100755
--- a/tests/run_test.sh
+++ b/tests/run_test.sh
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 #
 # Set up environment and run test specified on command line