diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 6e73d0e957152d..b7cbe4bcd136b1 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1296,6 +1296,19 @@ static struct thread_trace *thread_trace__new(void)
 	return ttrace;
 }
 
+static void thread_trace__delete(void *pttrace)
+{
+	struct thread_trace *ttrace = pttrace;
+
+	if (!ttrace)
+		return;
+
+	intlist__delete(ttrace->syscall_stats);
+	ttrace->syscall_stats = NULL;
+	zfree(&ttrace->entry_str);
+	free(ttrace);
+}
+
 static struct thread_trace *thread__trace(struct thread *thread, FILE *fp)
 {
 	struct thread_trace *ttrace;
@@ -1635,6 +1648,8 @@ static int trace__symbols_init(struct trace *trace, struct evlist *evlist)
 	if (trace->host == NULL)
 		return -ENOMEM;
 
+	thread__set_priv_destructor(thread_trace__delete);
+
 	err = trace_event__register_resolver(trace->host, trace__machine__resolve_kernel_addr);
 	if (err < 0)
 		goto out;