diff --git a/mpmaster/src/main/cpp/mpmaster.cpp b/mpmaster/src/main/cpp/mpmaster.cpp
index 04bb1bce..ce4e339b 100644
--- a/mpmaster/src/main/cpp/mpmaster.cpp
+++ b/mpmaster/src/main/cpp/mpmaster.cpp
@@ -121,7 +121,7 @@ Java_com_xypower_mpmaster_MpMasterService_getStats(JNIEnv* env, jclass cls, jlon
     MP_STATS stats = { 0 };
     size_t length = fread(&stats, 1, sizeof(stats), file);
     fclose(file);
-    if (length != sizeof(stats))
+    if (length < sizeof(stats))
     {
         return NULL;
     }
@@ -130,7 +130,6 @@ Java_com_xypower_mpmaster_MpMasterService_getStats(JNIEnv* env, jclass cls, jlon
     jintArray result = env->NewIntArray(intLength);
     env->SetIntArrayRegion(result, 0, intLength, (const jint*)&stats);
     return result;
-
 }