diff --git a/src/input/ipa.c b/src/input/ipa.c
index e41ec42..25eeb4a 100644
--- a/src/input/ipa.c
+++ b/src/input/ipa.c
@@ -503,7 +503,12 @@
 
 void ipa_server_conn_destroy(struct ipa_server_conn *conn)
 {
+	/* make the function re-entrant in case closed_cb() below somehow
+	 * calls again into this destructor */
+	if (conn->ofd.fd == -1)
+		return;
 	close(conn->ofd.fd);
+	conn->ofd.fd = -1;
 	msgb_free(conn->pending_msg);
 	osmo_fd_unregister(&conn->ofd);
 	if (conn->closed_cb)