diff --git a/libs/freetdm/src/zap_io.c b/libs/freetdm/src/zap_io.c
index 864b19ffd1..ddbf269b22 100644
--- a/libs/freetdm/src/zap_io.c
+++ b/libs/freetdm/src/zap_io.c
@@ -760,7 +760,7 @@ zap_status_t zap_channel_set_state(zap_channel_t *zchan, zap_channel_state_t sta
 		{
 			switch(state) {
 			case ZAP_CHANNEL_STATE_UP:
-				ok = 0;
+				ok = 1;
 				break;
 			default:
 				break;