diff --git a/core/thread/inc/TWin32Mutex.h b/core/thread/inc/TWin32Mutex.h
index d542ff0c4f32497c2a21e6d446af8c4e2614a026..d45a4cfa4dd8c60fc6e0c9f59f7ee8f52bbe378c 100644
--- a/core/thread/inc/TWin32Mutex.h
+++ b/core/thread/inc/TWin32Mutex.h
@@ -36,9 +36,7 @@ friend class TWin32Condition;
 private:
    CRITICAL_SECTION fCritSect;
 
-   enum EStatusBits {
-      kIsRecursive = BIT(14);
-   }
+   enum EStatusBits { kIsRecursive = BIT(14); }
 
 public:
    TWin32Mutex(Bool_t recursive=kFALSE);