diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_mac.cc b/compiler-rt/lib/sanitizer_common/sanitizer_mac.cc
index dbcf83da3d8f..d0b0937ce748 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_mac.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_mac.cc
@@ -326,7 +326,7 @@ uptr GetRSS() {
 }
 
 void *internal_start_thread(void (*func)(void *arg), void *arg) { return 0; }
-void internal_join_thread(void *th) { return 0; }
+void internal_join_thread(void *th) { }
 
 }  // namespace __sanitizer