diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index cefc71506409..8f6c784ce629 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -494,7 +494,7 @@ static struct evsel *evsel_match(struct evsel *evsel,
 	return NULL;
 }
 
-static void perf_evlist__collapse_resort(struct evlist *evlist)
+static void evlist__collapse_resort(struct evlist *evlist)
 {
 	struct evsel *evsel;
 
@@ -1214,7 +1214,7 @@ static int __cmd_diff(void)
 			goto out_delete;
 		}
 
-		perf_evlist__collapse_resort(d->session->evlist);
+		evlist__collapse_resort(d->session->evlist);
 
 		if (pdiff.ptime_range)
 			zfree(&pdiff.ptime_range);