diff --git a/headers/os/support/BlockCache.h b/headers/os/support/BlockCache.h
index 958951376b..9a25c19d67 100644
--- a/headers/os/support/BlockCache.h
+++ b/headers/os/support/BlockCache.h
@@ -70,4 +70,4 @@ private:
 	uint32		_reserved[2];
 };
 
-#endif /* _BLOCK_CACHE_H */
+#endif
diff --git a/headers/os/support/DataIO.h b/headers/os/support/DataIO.h
index c843be334b..357456dee4 100644
--- a/headers/os/support/DataIO.h
+++ b/headers/os/support/DataIO.h
@@ -162,4 +162,4 @@ private:
 	uint32	_reserved[1];
 };
 
-#endif	// _DATA_IO_H
+#endif