diff --git a/drivers/media/video/stk-webcam.h b/drivers/media/video/stk-webcam.h
index 7e989d1..a2164cb 100644
--- a/drivers/media/video/stk-webcam.h
+++ b/drivers/media/video/stk-webcam.h
@@ -79,6 +79,7 @@
 #define unset_present(dev)	((dev)->status &= \
 					~(S_PRESENT|S_INITIALISED|S_STREAMING))
 #define set_initialised(dev)	((dev)->status |= S_INITIALISED)
+#define unset_initialised(dev)	((dev)->status &= ~S_INITIALISED)
 #define set_memallocd(dev)	((dev)->status |= S_MEMALLOCD)
 #define unset_memallocd(dev)	((dev)->status &= ~S_MEMALLOCD)
 #define set_streaming(dev)	((dev)->status |= S_STREAMING)