diff --git a/services/native/src/power_state_machine.cpp b/services/native/src/power_state_machine.cpp
index 70d2a448687dea3790c5f1916fd6d1abf4cfbb8a..9ed6e3565a7cf864901a12243602411e4b375c05 100644
--- a/services/native/src/power_state_machine.cpp
+++ b/services/native/src/power_state_machine.cpp
@@ -1833,7 +1833,7 @@ PowerStateMachine::ScreenChangeCheck::ScreenChangeCheck(
     }
 
     pid_ = getpid();
-    uid_ = getuid();
+    uid_ = static_cast<pid_t>(getuid());
 
     FFRTTask task = [checker = (*this)]() {
         checker.ReportSysEvent("TIMEOUT");