diff --git a/openbsc/src/e1_input.c b/openbsc/src/e1_input.c
index 7ddd405..b1dfe9b 100644
--- a/openbsc/src/e1_input.c
+++ b/openbsc/src/e1_input.c
@@ -428,6 +428,9 @@
 		msgb_free(msg);
 	}
 
+	if (link->ts->type == E1INP_TS_TYPE_SIGN)
+		bsc_del_timer(&link->ts->sign.tx_timer);
+
 	talloc_free(link);
 }