diff --git a/src/libosmo-mgcp-client/mgcp_client_endpoint_fsm.c b/src/libosmo-mgcp-client/mgcp_client_endpoint_fsm.c
index 2259788c9..ef4da1734 100644
--- a/src/libosmo-mgcp-client/mgcp_client_endpoint_fsm.c
+++ b/src/libosmo-mgcp-client/mgcp_client_endpoint_fsm.c
@@ -255,6 +255,9 @@ struct osmo_mgcpc_ep *osmo_mgcpc_ep_fi_mgwep(struct osmo_fsm_inst *fi)
  * MGCP messages to set up the endpoint will be sent on the given mgcp_client, as soon as the first
  * osmo_mgcpc_ep_ci_request() is invoked.
  *
+ * IMPORTANT: To avoid use-after-free problems, using this FSM requires use of deferred FSM deallocation using
+ * osmo_fsm_set_dealloc_ctx(), e.g. using osmo_select_main_ctx(OTC_SELECT) with osmo_select_main_ctx() as main loop.
+ *
  * A typical sequence of events would be:
  *
  *    ep = osmo_mgcpc_ep_alloc(..., mgcp_client_rtpbridge_wildcard(client));
diff --git a/src/libosmo-mgcp-client/mgcp_client_fsm.c b/src/libosmo-mgcp-client/mgcp_client_fsm.c
index 7565d3283..800ae1bc7 100644
--- a/src/libosmo-mgcp-client/mgcp_client_fsm.c
+++ b/src/libosmo-mgcp-client/mgcp_client_fsm.c
@@ -708,6 +708,9 @@ void mgcp_conn_delete(struct osmo_fsm_inst *fi)
 
 	OSMO_ASSERT(mgcp_ctx);
 
+	if (fi->proc.terminating)
+		return;
+
 	/* Unlink FSM from parent */
 	osmo_fsm_inst_unlink_parent(fi, NULL);