diff --git a/tools/perf/Documentation/perf-lock.txt b/tools/perf/Documentation/perf-lock.txt
index ab25be28c9dcaab31adb1822195afab571308910..74d7745921968b3a7286311f740d3f5aab0315e2 100644
--- a/tools/perf/Documentation/perf-lock.txt
+++ b/tools/perf/Documentation/perf-lock.txt
@@ -42,6 +42,10 @@ COMMON OPTIONS
 --dump-raw-trace::
         Dump raw trace in ASCII.
 
+-f::
+--force::
+	Don't complan, do it.
+
 REPORT OPTIONS
 --------------