diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat.c b/openbsc/src/osmo-bsc_nat/bsc_nat.c
index 2f186b2..9216654 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat.c
@@ -985,6 +985,7 @@
 		LOGP(DNAT, LOGL_ERROR,
 			"No bsc found for token '%s' on fd: %d.\n", token,
 			bsc->write_queue.bfd.fd);
+		bsc_close_connection(bsc);
 		return;
 	}