diff --git a/tests/zfs-tests/tests/perf/regression/random_readwrite_fixed.ksh b/tests/zfs-tests/tests/perf/regression/random_readwrite_fixed.ksh
index 38c0669f6..e368ed236 100755
--- a/tests/zfs-tests/tests/perf/regression/random_readwrite_fixed.ksh
+++ b/tests/zfs-tests/tests/perf/regression/random_readwrite_fixed.ksh
@@ -1,4 +1,4 @@
-#!/usr/bin/ksh
+#!/bin/ksh
 # file and its contents are supplied under the terms of the
 # Common Development and Distribution License ("CDDL"), version 1.0.
 # You may only use this file in accordance with the terms of version