diff --git a/third_party/fwkacllib/inc/toolchain/prof_callback.h b/third_party/fwkacllib/inc/toolchain/prof_callback.h
index 3fad74bc..18550157 100644
--- a/third_party/fwkacllib/inc/toolchain/prof_callback.h
+++ b/third_party/fwkacllib/inc/toolchain/prof_callback.h
@@ -74,6 +74,7 @@ enum MsprofReporterCallbackType {
     MSPROF_REPORTER_REPORT = 0,           // report data
     MSPROF_REPORTER_INIT,                 // init reporter
     MSPROF_REPORTER_UNINIT,               // uninit reporter
+    MSPROF_REPORTER_DATA_MAX_LEN,         // data max length for calling report callback
 };
 
 /**