diff --git a/services/gpuservice/GpuService.h b/services/gpuservice/GpuService.h
index edfd364..5304fa1 100644
--- a/services/gpuservice/GpuService.h
+++ b/services/gpuservice/GpuService.h
@@ -37,8 +37,8 @@
 
 private:
     // IGpuService interface
-    void setGpuStats(const std::string driverPackageName, const std::string driverVersionName,
-                     const uint64_t driverVersionCode, const std::string appPackageName);
+    void setGpuStats(const std::string& driverPackageName, const std::string& driverVersionName,
+                     const uint64_t driverVersionCode, const std::string& appPackageName);
 
     // GpuStats access must be protected by mStateLock
     std::mutex mStateLock;