diff --git a/niobeu4/liteos_m/hals/drivers/bluetooth_lite/bluetooth_service.c b/niobeu4/liteos_m/hals/drivers/bluetooth_lite/bluetooth_service.c
index b1e5106f1690d1a86a730421b00cd6099fb77028..ddb41a6d8f7d81be3b2166f1ed1eb11e503ff18d 100755
--- a/niobeu4/liteos_m/hals/drivers/bluetooth_lite/bluetooth_service.c
+++ b/niobeu4/liteos_m/hals/drivers/bluetooth_lite/bluetooth_service.c
@@ -241,7 +241,7 @@ BtError BleGattsAddCharDescr(uint16_t serviceHandle, BtUuid *descrUuid, uint16_t
  */
 BtError BleGattsAddChar(uint16_t serviceHandle, GattsChar *character)
 {
-    if ((charUuid == NULL) || (character == NULL) || (character->charVal == NULL)) {
+    if ((character == NULL) || (character->charUuid == NULL) || (character->charVal == NULL)) {
         BT_DEBUG("BleGattsAddChar param is NULL! \n");
         return BT_PARAMINPUT_ERROR;
     }