diff --git a/rtc_plugins.cpp b/rtc_plugins.cpp
index e08b4e3..a91b8e0 100644
--- a/rtc_plugins.cpp
+++ b/rtc_plugins.cpp
@@ -54,7 +54,7 @@ py::object create_numpy_array() {
 int sendCustomAudioData(const int16_t destChannelIndex, py::object pD, int32_t sampleRate, uint64_t channelNum,
                         uint64_t dataLen) {
     try {
-        pyData = create_numpy_array();
+        py::object pyData = create_numpy_array();
         std::cout << "step 1" << std::endl;
         // 1. 检查输入有效性
         if (pyData.ptr() == nullptr) {