diff --git a/src/libosmo-mgcp-client/mgcp_client.c b/src/libosmo-mgcp-client/mgcp_client.c
index f094a09..135aed0 100644
--- a/src/libosmo-mgcp-client/mgcp_client.c
+++ b/src/libosmo-mgcp-client/mgcp_client.c
@@ -728,6 +728,7 @@
 			     MGCP_MSG_PRESENCE_CALL_ID | \
 			     MGCP_MSG_PRESENCE_CONN_MODE)
 #define MGCP_MDCX_MANDATORY (MGCP_MSG_PRESENCE_ENDPOINT | \
+			     MGCP_MSG_PRESENCE_CALL_ID |  \
 			     MGCP_MSG_PRESENCE_CONN_ID)
 #define MGCP_DLCX_MANDATORY (MGCP_MSG_PRESENCE_ENDPOINT)
 #define MGCP_AUEP_MANDATORY (MGCP_MSG_PRESENCE_ENDPOINT)