diff --git a/common/include/constants_dinput.h b/common/include/constants_dinput.h
index 945c5c4..9d1f0cf 100644
--- a/common/include/constants_dinput.h
+++ b/common/include/constants_dinput.h
@@ -88,7 +88,7 @@ namespace DistributedInput {
 
     constexpr int32_t INPUT_LATENCY_DELAYTIME_US = 50 * 1000;
 
-    constexpr int32_t INPUT_LATENCY_DELAY_TIMES = 60;
+    constexpr uint32_t INPUT_LATENCY_DELAY_TIMES = 60;
 
     constexpr int32_t SESSION_WAIT_TIMEOUT_SECOND = 5;
 
diff --git a/services/source/transport/src/distributed_input_source_transport.cpp b/services/source/transport/src/distributed_input_source_transport.cpp
index 02ef269..40295ee 100644
--- a/services/source/transport/src/distributed_input_source_transport.cpp
+++ b/services/source/transport/src/distributed_input_source_transport.cpp
@@ -366,7 +366,7 @@ void DistributedInputSourceTransport::StartLatencyCount(const std::string& devic
     DHLOGI("start");
     while (isLatencyThreadRunning_.load()) {
         if (sendNum_ >= INPUT_LATENCY_DELAY_TIMES) {
-            int32_t latency = deltaTimeAll_ / 2 / INPUT_LATENCY_DELAY_TIMES;
+            uint64_t latency = (uint64_t)(deltaTimeAll_ / 2 / INPUT_LATENCY_DELAY_TIMES);
             DHLOGI("LatencyCount average single-channel latency is %d, send times is %d, recive times is %d,\
                 each RTT latency details is %s", latency, sendNum_, recvNum_, eachLatencyDetails_.c_str());
             deltaTimeAll_ = 0;