gsm0408: Use counter_inc to increment the counter.
diff --git a/openbsc/src/gsm_04_08_utils.c b/openbsc/src/gsm_04_08_utils.c
index 0ee06ca..1b3ed25 100644
--- a/openbsc/src/gsm_04_08_utils.c
+++ b/openbsc/src/gsm_04_08_utils.c
@@ -279,7 +279,7 @@
 	sig_data.bts	= msg->lchan->ts->trx->bts;
 	sig_data.lchan	= msg->lchan;
 
-	bts->network->stats.paging.completed++;
+	counter_inc(bts->network->stats.paging.completed);
 
 	dispatch_signal(SS_PAGING, S_PAGING_SUCCEEDED, &sig_data);