diff --git a/src/librfu_rfu.c b/src/librfu_rfu.c
index 8c5b74159..9afdc3033 100644
--- a/src/librfu_rfu.c
+++ b/src/librfu_rfu.c
@@ -1403,7 +1403,7 @@ static u16 rfu_STC_setSendData_org(u8 ni_or_uni, u8 bmSendSlot, u8 subFrameSize,
     struct RfuSlotStatusUNI *slotStatus_UNI;
     struct RfuSlotStatusNI *slotStatus_NI;
 
-    if (gRfuLinkStatus->parentChild == MODE_NEUTRAL)
+    if (gRfuLinkStatus->parentChild > MODE_PARENT)
         return ERR_MODE_NOT_CONNECTED;
     if (!(bmSendSlot & 0xF))
         return ERR_SLOT_NO;