diff --git a/frameworks/native/miscdevice/src/miscdevice_service_proxy.cpp b/frameworks/native/miscdevice/src/miscdevice_service_proxy.cpp
index bdf2275673facdbcbd728e02aff025141c2bdca0..0766778d192bf530d1e591493526ea9b377a39e2 100644
--- a/frameworks/native/miscdevice/src/miscdevice_service_proxy.cpp
+++ b/frameworks/native/miscdevice/src/miscdevice_service_proxy.cpp
@@ -305,7 +305,7 @@ std::vector<int32_t> MiscdeviceServiceProxy::GetLightSupportId()
         MISC_HILOGE("sendRequest failed, ret : %{public}d", ret);
     }
     int32_t setCount = reply.ReadInt32();
-    if (setCount <= 0 || setCount > idVec.max_size()) {
+    if (setCount <= 0 || setCount > static_cast<int32_t>(idVec.max_size())) {
         MISC_HILOGE("setCount: %{public}d is invalid", setCount);
         return idVec;
     }