diff --git a/C/mediapipe_api/external/stdlib.cc b/C/mediapipe_api/external/stdlib.cc
index 6c80db998..b4c74f07e 100644
--- a/C/mediapipe_api/external/stdlib.cc
+++ b/C/mediapipe_api/external/stdlib.cc
@@ -8,7 +8,7 @@ void std_string__delete(std::string* str) {
   delete str;
 }
 
-MpReturnCode std_string__PKc_int(const char* src, int size, std::string** str_out) {
+MpReturnCode std_string__PKc_i(const char* src, int size, std::string** str_out) {
   TRY {
     *str_out = new std::string(src, size);
     RETURN_CODE(MpReturnCode::Success);
diff --git a/C/mediapipe_api/external/stdlib.h b/C/mediapipe_api/external/stdlib.h
index b37950fb2..4f4022d0c 100644
--- a/C/mediapipe_api/external/stdlib.h
+++ b/C/mediapipe_api/external/stdlib.h
@@ -10,7 +10,7 @@ MP_CAPI(void) delete_array__PKc(const char* str);
 
 // string API
 MP_CAPI(void) std_string__delete(std::string* str);
-MP_CAPI(MpReturnCode) std_string__PKc_int(const char* src, int size, std::string** str_out);
+MP_CAPI(MpReturnCode) std_string__PKc_i(const char* src, int size, std::string** str_out);
 MP_CAPI(void) std_string__swap__Rstr(std::string* src, std::string* dst);
 
 }  // extern "C"