diff --git a/src/mod/endpoints/mod_sofia/sofia.c b/src/mod/endpoints/mod_sofia/sofia.c
index a370b52442..874e012a74 100644
--- a/src/mod/endpoints/mod_sofia/sofia.c
+++ b/src/mod/endpoints/mod_sofia/sofia.c
@@ -11171,7 +11171,9 @@ void sofia_handle_sip_i_invite(switch_core_session_t *session, nua_t *nua, sofia
 
 		for (mp = sip->sip_multipart; mp; mp = mp->mp_next) {
 			if (mp->mp_payload && mp->mp_payload->pl_data && mp->mp_content_type && mp->mp_content_type->c_type) {
-				char *val = switch_core_session_sprintf(session, "%s:%s", mp->mp_content_type->c_type, mp->mp_payload->pl_data);
+				char *val;
+				if (mp->mp_content_id) val = switch_core_session_sprintf(session, "%s:~Content-ID: %s\r\n\r\n%s", mp->mp_content_type->c_type, mp->mp_content_id->g_string, mp->mp_payload->pl_data);
+				else val = switch_core_session_sprintf(session, "%s:%s", mp->mp_content_type->c_type, mp->mp_payload->pl_data);
 				switch_channel_add_variable_var_check(channel, "sip_multipart", val, SWITCH_FALSE, SWITCH_STACK_PUSH);
 			}
 		}