diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 9c82888..b605009 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -369,7 +369,7 @@
 	list_for_each_entry(evsel, &evlist->entries, node) {
 		struct hists *hists = &evsel->hists;
 
-		hists__collapse_resort(hists);
+		hists__collapse_resort(hists, NULL);
 	}
 }