diff --git a/include/pmu.h b/include/pmu.h
index 0a068402e36e284f13f44f0ed96636e41acbc917..fc20f40b4bcc2c815d770a027de37432a858e148 100644
--- a/include/pmu.h
+++ b/include/pmu.h
@@ -313,7 +313,7 @@ int PmuGetField(struct SampleRawData *rawData, const char *fieldName, void *valu
  * @param fieldName
  * @return
  */
-SampleRawField *PmuGetFieldExp(struct SampleRawData *rawData, const char *fieldName);
+struct SampleRawField *PmuGetFieldExp(struct SampleRawData *rawData, const char *fieldName);
 
 #pragma GCC visibility pop
 #ifdef __cplusplus
diff --git a/pmu/pmu.cpp b/pmu/pmu.cpp
index 1efb644bba744fd296244f9424e2a7fb922b921e..89ffb180be6cbdf3bcb8c8da039721ee756e9a45 100644
--- a/pmu/pmu.cpp
+++ b/pmu/pmu.cpp
@@ -756,7 +756,7 @@ int PmuGetField(struct SampleRawData *rawData, const char *fieldName, void *valu
     return PointerPasser::ParsePointer(rawData->data, fieldName, value, vSize);
 }
 
-SampleRawField *PmuGetFieldExp(struct SampleRawData *rawData, const char *fieldName) {
+struct SampleRawField *PmuGetFieldExp(struct SampleRawData *rawData, const char *fieldName) {
     if (rawData == nullptr) {
         New(LIBPERF_ERR_INVALID_FIELD_ARGS, "rawData cannot be nullptr.");
         return nullptr;