diff --git a/msm/dp/dp_altmode.c b/msm/dp/dp_altmode.c
index c85c0fd57c..b1ad1c24f4 100644
--- a/msm/dp/dp_altmode.c
+++ b/msm/dp/dp_altmode.c
@@ -309,6 +309,7 @@ void dp_altmode_put(struct dp_hpd *dp_hpd)
 			dp_altmode);
 
 	altmode_deregister_client(altmode->amclient);
+	altmode_deregister_notifier(altmode->dev, altmode);
 
 	kfree(altmode);
 }