diff --git a/src/main/rx/ibus.c b/src/main/rx/ibus.c
index 727f071e3..da7e9257a 100644
--- a/src/main/rx/ibus.c
+++ b/src/main/rx/ibus.c
@@ -175,7 +175,7 @@ static uint8_t ibusFrameStatus(rxRuntimeConfig_t *rxRuntimeConfig)
     ibusFrameDone = false;
 
     if (checksumIsOk()) {
-        if (ibusModel == IBUS_MODEL_IA6 || ibusSyncByte == 0x20) {
+        if (ibusModel == IBUS_MODEL_IA6 || ibusSyncByte == IBUS_SERIAL_RX_PACKET_LENGTH) {
             updateChannelData();
             frameStatus = RX_FRAME_COMPLETE;
         }