Index: lib/tsan/rtl/tsan_platform_mac.cc
===================================================================
--- lib/tsan/rtl/tsan_platform_mac.cc
+++ lib/tsan/rtl/tsan_platform_mac.cc
@@ -167,8 +167,8 @@
 #else  // !SANITIZER_GO
     "app      (0x%016zx-0x%016zx): resident %zd kB, dirty %zd kB\n"
 #endif
-    "stacks: %ld unique IDs, %ld kB allocated\n"
-    "threads: %ld total, %ld live\n"
+    "stacks: %zd unique IDs, %zd kB allocated\n"
+    "threads: %zd total, %zd live\n"
     "------------------------------\n",
     ShadowBeg(), ShadowEnd(), shadow_res / 1024, shadow_dirty / 1024,
     MetaShadowBeg(), MetaShadowEnd(), meta_res / 1024, meta_dirty / 1024,