diff --git a/casadm/extended_err_msg.c b/casadm/extended_err_msg.c
index 4f9e14e..96a6c5d 100644
--- a/casadm/extended_err_msg.c
+++ b/casadm/extended_err_msg.c
@@ -69,6 +69,10 @@ struct {
 		OCF_ERR_CORE_EXIST,
 		"Core id already used"
 	},
+	{
+		OCF_ERR_CORE_UUID_EXISTS,
+		"Device already added as a core"
+	},
 	{
 		OCF_ERR_CORE_NOT_AVAIL,
 		"Core device not available"
diff --git a/ocf b/ocf
index 7dcf90e..5b3a960 160000
--- a/ocf
+++ b/ocf
@@ -1 +1 @@
-Subproject commit 7dcf90ef6a9666383dd475c42c1b3db106367de8
+Subproject commit 5b3a9606d3eab2e1157d2d692d1f4879fbb527ae