diff --git a/tools/perf/Documentation/perf-buildid-cache.txt b/tools/perf/Documentation/perf-buildid-cache.txt
index 84681007f80f4aae6ec031e416edf1c3e866d304..73c2650bd0db565b6bd1fe695bb2504a294f0470 100644
--- a/tools/perf/Documentation/perf-buildid-cache.txt
+++ b/tools/perf/Documentation/perf-buildid-cache.txt
@@ -24,6 +24,9 @@ OPTIONS
 -a::
 --add=::
         Add specified file to the cache.
+-f::
+--force::
+	Don't complain, do it.
 -k::
 --kcore::
         Add specified kcore file to the cache. For the current host that is