diff --git a/src/nvidia-gpu/NvidiaGpuDevice.hpp b/src/nvidia-gpu/NvidiaGpuDevice.hpp
index df0c2e2..866db32 100644
--- a/src/nvidia-gpu/NvidiaGpuDevice.hpp
+++ b/src/nvidia-gpu/NvidiaGpuDevice.hpp
@@ -78,7 +78,7 @@
 
     std::array<uint8_t, sizeof(gpu::ReadThermalParametersRequest)>
         thermalParamReqMsg{};
-    std::array<uint8_t, 3> thresholds{};
+    std::array<int32_t, 3> thresholds{};
     size_t current_threshold_index{};
 
     SensorConfigs configs;