1 files changed, 1 insertions, 1 deletions
diff --git a/lib/msan/msan_thread.h b/lib/msan/msan_thread.h
index bc605b89a..ed22e67ed 100644
--- a/lib/msan/msan_thread.h
+++ b/lib/msan/msan_thread.h
@@ -32,7 +32,7 @@ class MsanThread {
   uptr stack_bottom() { return stack_bottom_; }
   uptr tls_begin() { return tls_begin_; }
   uptr tls_end() { return tls_end_; }
-  bool IsMainThread() { return start_routine_ == 0; }
+  bool IsMainThread() { return start_routine_ == nullptr; }
 
   bool AddrIsInStack(uptr addr) {
     return addr >= stack_bottom_ && addr < stack_top_;