diff --git a/panels/sound/gvc-mixer-stream.h b/panels/sound/gvc-mixer-stream.h
index ad79024e2..846f2e03a 100644
--- a/panels/sound/gvc-mixer-stream.h
+++ b/panels/sound/gvc-mixer-stream.h
@@ -61,6 +61,7 @@ typedef struct
         char *port;
         char *human_port;
         guint priority;
+        gboolean available;
 } GvcMixerStreamPort;
 
 GType               gvc_mixer_stream_get_type        (void);