diff --git a/reactos/include/dxsdk/dmo.h b/reactos/include/dxsdk/dmo.h
index 4ef30b79439..73bc011a3a6 100644
--- a/reactos/include/dxsdk/dmo.h
+++ b/reactos/include/dxsdk/dmo.h
@@ -17,3 +17,4 @@
 #include "dmoreg.h"
 #include "dmort.h"
 
+#endif /* __DMO_H__ */
diff --git a/reactos/include/dxsdk/mediaerr.h b/reactos/include/dxsdk/mediaerr.h
index a3aa5a30fa5..ee4c3900a27 100644
--- a/reactos/include/dxsdk/mediaerr.h
+++ b/reactos/include/dxsdk/mediaerr.h
@@ -7,5 +7,5 @@
 #define DMO_E_NOTACCEPTING          0x80040204
 #define DMO_E_TYPE_NOT_ACCEPTED     0x80040205
 #define DMO_E_NO_MORE_ITEMS         0x80040206
-#endif _MEDIAERR_H_
+#endif /* _MEDIAERR_H_ */