diff --git a/src/libosmo-mgcp/mgcp_endp.c b/src/libosmo-mgcp/mgcp_endp.c
index 03e5330..2bf15e0 100644
--- a/src/libosmo-mgcp/mgcp_endp.c
+++ b/src/libosmo-mgcp/mgcp_endp.c
@@ -671,7 +671,9 @@
 	talloc_free(endp->local_options.codec);
 	endp->local_options.codec = NULL;
 
-	if (endp->trunk->trunk_type == MGCP_TRUNK_E1)
-		mgcp_e1_endp_release(endp);
+	if (endp->trunk->trunk_type == MGCP_TRUNK_E1) {
+		uint8_t ts = e1_ts_nr_from_epname(endp->name);
+		mgcp_e1_endp_release(endp, ts);
+	}
 }