diff --git a/openbsc/src/libabis/input/misdn.c b/openbsc/src/libabis/input/misdn.c
index 2d52441..3c33792 100644
--- a/openbsc/src/libabis/input/misdn.c
+++ b/openbsc/src/libabis/input/misdn.c
@@ -246,7 +246,7 @@
 	/* set tx delay timer for next event */
 	e1i_ts->sign.tx_timer.cb = timeout_ts1_write;
 	e1i_ts->sign.tx_timer.data = e1i_ts;
-	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;
 }