diff --git a/hievent/src/hievent_driver.c b/hievent/src/hievent_driver.c
index 571ba40bf5a83db205f9227ce73dfa7a997a81b0..aab4952d357b2b788f290b2e47bd3af2cba4e617 100644
--- a/hievent/src/hievent_driver.c
+++ b/hievent/src/hievent_driver.c
@@ -255,7 +255,7 @@ static void HieventCoverOldLog(size_t bufLen)
     struct HieventEntry header;
     size_t totalSize = bufLen + sizeof(struct HieventEntry);
 
-    while (totalSize + g_hieventDev.size >= HIEVENT_LOG_BUFFER) {
+    while (totalSize + g_hieventDev.size > HIEVENT_LOG_BUFFER) {
         retval = HieventReadRingBuffer((unsigned char *)&header, sizeof(header));
         if (retval < 0) {
             break;