1 files changed, 1 insertions, 1 deletions

diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 5e4803158672..cd2605d86984 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -1321,7 +1321,7 @@ static int diff__config(const char *var, const char *value,
         return 0;
 }
 
-int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
+int cmd_diff(int argc, const char **argv)
 {
         int ret = hists__init();