diff --git a/include/sound/jack.h b/include/sound/jack.h
index 1089ba4..8e8c133 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -64,7 +64,7 @@
 	int type;
 	const char *id;
 	char name[100];
-	unsigned int key[6];   /* Keep in sync with definitions above */
+	unsigned int key[8];   /* Keep in sync with definitions above */
 	void *private_data;
 	void (*private_free)(struct snd_jack *);
 };