diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
index f261eeccfaf6..020fbdaa3fba 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
@@ -46,7 +46,7 @@ test_event_enabled() {
 
     while [ $check_times -ne 0 ]; do
 	e=`cat $EVENT_ENABLE`
-	if [ "$e" == $val ]; then
+	if [ "$e" = $val ]; then
 	    return 0
 	fi
 	sleep $SLEEP_TIME