diff --git a/Firmware/ChameleonMini/Application/MifareClassic.c b/Firmware/ChameleonMini/Application/MifareClassic.c
index 8eed342..b0085ce 100644
--- a/Firmware/ChameleonMini/Application/MifareClassic.c
+++ b/Firmware/ChameleonMini/Application/MifareClassic.c
@@ -702,7 +702,7 @@ uint16_t MifareClassicAppProcess(uint8_t* Buffer, uint16_t BitCount) {
                     retSize = MFCLASSIC_ACK_NAK_FRAME_SIZE;
                 }
             } else if (Buffer[0] == MFCLASSIC_CMD_HALT) {
-               retSize = mfcHandleHaltCommand(Buffer);
+               mfcHandleHaltCommand(Buffer, &retSize);
             }
             break; /* End of state CHINESE_IDLE */