1 files changed, 1 insertions, 1 deletions

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 21a78d30d53d..2e418b9fc1c4 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -132,7 +132,7 @@ static int hist_entry__add(struct addr_location *al, u64 count)
         return 0;
 }
 
-static int process_sample_event(event_t *event)
+static int process_sample_event(event_t *event, struct perf_session *session __used)
 {
         struct addr_location al;