Index: uspace/lib/c/include/ipc/vfs.h
===================================================================
--- uspace/lib/c/include/ipc/vfs.h	(revision 44451ee572dc1c629706741a55d795a8c556cec0)
+++ uspace/lib/c/include/ipc/vfs.h	(revision 40cdbecbb00c24e72ac96b7b0350aa443cd5853e)
@@ -56,4 +56,5 @@
 	/** Unique identifier of the fs. */
 	char name[FS_NAME_MAXLEN + 1];
+	unsigned int instance;
 	bool concurrent_read_write;
 	bool write_retains_size;