diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 20f3a9c..a4a60b7 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -800,10 +800,10 @@
 		return;
 
 	for (i = 0 ; i < tp->core_sib; i++)
-		free(tp->core_siblings[i]);
+		zfree(&tp->core_siblings[i]);
 
 	for (i = 0 ; i < tp->thread_sib; i++)
-		free(tp->thread_siblings[i]);
+		zfree(&tp->thread_siblings[i]);
 
 	free(tp);
 }
@@ -1232,8 +1232,8 @@
 		return;
 
 	for (evsel = events; evsel->attr.size; evsel++) {
-		free(evsel->name);
-		free(evsel->id);
+		zfree(&evsel->name);
+		zfree(&evsel->id);
 	}
 
 	free(events);
@@ -2105,7 +2105,7 @@
 	ret = 0;
 out_free:
 	for (i = 0; i < nr_groups; i++)
-		free(desc[i].name);
+		zfree(&desc[i].name);
 	free(desc);
 
 	return ret;