Index: /trunk/include/VBox/VMMDev.h
===================================================================
--- /trunk/include/VBox/VMMDev.h	(revision 50511)
+++ /trunk/include/VBox/VMMDev.h	(revision 50512)
@@ -510,5 +510,5 @@
 #define VMMDEV_GUEST_SUPPORTS_GRAPHICS                      RT_BIT_32(2)
 /** The mask of valid events, for sanity checking. */
-#define VMMDEV_GUEST_CAPABILITIES                           UINT32_C(0x00000007)
+#define VMMDEV_GUEST_CAPABILITIES_MASK                      UINT32_C(0x00000007)
 /** @} */