diff --git a/osal/mpp_time.cpp b/osal/mpp_time.cpp
index a4925449..5eac8a38 100644
--- a/osal/mpp_time.cpp
+++ b/osal/mpp_time.cpp
@@ -53,6 +53,6 @@ void mpp_time_diff(RK_S64 start, RK_S64 end, RK_S64 limit, char *fmt)
 
     RK_S64 diff = end - start;
     if (diff >= limit)
-        mpp_dbg(MPP_DBG_TIMING, "%s timing %.2f ms\n", fmt, diff / (float)1000);
+        mpp_dbg(MPP_DBG_TIMING, "%s timing %lld us\n", fmt, diff);
 }