Index: /trunk/src/VBox/HostDrivers/VBoxNetFlt/VBoxNetFltInternal.h
===================================================================
--- /trunk/src/VBox/HostDrivers/VBoxNetFlt/VBoxNetFltInternal.h	(revision 15922)
+++ /trunk/src/VBox/HostDrivers/VBoxNetFlt/VBoxNetFltInternal.h	(revision 15923)
@@ -200,4 +200,6 @@
             /** The MAC address of the interface. Caching MAC for performance reasons. */
             RTMAC Mac;
+            /** mutex used to synchronize ADAPT init/deinit */
+            RTSEMMUTEX hAdaptMutex;
             /** @}  */
 # else