diff --git a/openbsc/src/libabis/input/hsl.c b/openbsc/src/libabis/input/hsl.c
index 44528dd..9ff8552 100644
--- a/openbsc/src/libabis/input/hsl.c
+++ b/openbsc/src/libabis/input/hsl.c
@@ -340,7 +340,7 @@
 	e1i_ts->sign.tx_timer.data = e1i_ts;
 
 	/* Reducing this might break the nanoBTS 900 init. */
-	bsc_schedule_timer(&e1i_ts->sign.tx_timer, 0, e1i_ts->sign.delay);
+	osmo_timer_schedule(&e1i_ts->sign.tx_timer, 0, e1i_ts->sign.delay);
 
 	return ret;
 }