1 files changed, 1 insertions, 1 deletions
diff --git a/util/concurrency/race.h b/util/concurrency/race.h
index 27cc12d5cba..0b8338c4333 100644
--- a/util/concurrency/race.h
+++ b/util/concurrency/race.h
@@ -23,7 +23,7 @@ namespace mongo {
 
     class CodeBlock { 
         volatile int n;
-        DWORD tid;
+        unsigned tid;
         void fail() { 
             log() << "synchronization (race condition) failure" << endl;
             printStackTrace();