diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index c8edff6803d1..24ebd3e3eb7d 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -83,7 +83,7 @@ ifdef INSTALL_PATH
 	done;
 
 	@# Ask all targets to emit their test scripts
-	echo "#!/bin/bash" > $(ALL_SCRIPT)
+	echo "#!/bin/sh" > $(ALL_SCRIPT)
 	echo "cd \$$(dirname \$$0)" >> $(ALL_SCRIPT)
 	echo "ROOT=\$$PWD" >> $(ALL_SCRIPT)