diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index d3b5f5faf..02e5774ca 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -670,7 +670,7 @@ static void create_tasks(struct perf_sched *sched)
 	err = pthread_attr_init(&attr);
 	BUG_ON(err);
 	err = pthread_attr_setstacksize(&attr,
-			(size_t) max(16 * 1024, PTHREAD_STACK_MIN));
+			(size_t) max(16 * 1024, (int)PTHREAD_STACK_MIN));
 	BUG_ON(err);
 	err = pthread_mutex_lock(&sched->start_work_mutex);
 	BUG_ON(err);
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index df515cd8d..635655b99 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1379,7 +1379,7 @@ static int maps__set_modules_path_dir(struct maps *maps, const char *dir_name, i
 		struct stat st;
 
 		/*sshfs might return bad dent->d_type, so we have to stat*/
-		snprintf(path, sizeof(path), "%s/%s", dir_name, dent->d_name);
+		path__join(path, sizeof(path), dir_name, dent->d_name);
 		if (stat(path, &st))
 			continue;