diff --git a/engine/services/hardware_service.cc b/engine/services/hardware_service.cc
index 2ace50172..5403d707a 100644
--- a/engine/services/hardware_service.cc
+++ b/engine/services/hardware_service.cc
@@ -35,6 +35,7 @@ bool TryConnectToServer(const std::string& host, int port) {
 
 HardwareInfo HardwareService::GetHardwareInfo() {
   // append active state
+  std::lock_guard<std::mutex> l(mtx_);
   auto gpus = cortex::hw::GetGPUInfo();
   auto res = db_service_->LoadHardwareList();
   if (res.has_value()) {
diff --git a/engine/services/hardware_service.h b/engine/services/hardware_service.h
index c002be652..a8a619d4f 100644
--- a/engine/services/hardware_service.h
+++ b/engine/services/hardware_service.h
@@ -2,6 +2,7 @@
 #include <stdint.h>
 #include <string>
 #include <vector>
+#include <mutex>
 
 #include "common/hardware_config.h"
 #include "database_service.h"
@@ -39,4 +40,5 @@ class HardwareService {
  private:
   std::shared_ptr<DatabaseService> db_service_ = nullptr;
   std::optional<cortex::hw::ActivateHardwareConfig> ahc_;
+  std::mutex mtx_;
 };
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