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-rw-r--r--tools/perf/tests/shell/lib/waiting.sh1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/tests/shell/lib/waiting.sh b/tools/perf/tests/shell/lib/waiting.sh
index e7a39134a68e..bdd5a7c71591 100644
--- a/tools/perf/tests/shell/lib/waiting.sh
+++ b/tools/perf/tests/shell/lib/waiting.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
tenths=date\ +%s%1N