diff --git a/src/device.cpp b/src/device.cpp
index 9c63919..dce00f8 100644
--- a/src/device.cpp
+++ b/src/device.cpp
@@ -14,7 +14,7 @@ const vector<string> Device::sensor_types_paths({"/in", "/fan", "/pwm",
                                                  "/temp"});
 const vector<string> Device::sensor_types_icons(
     {"assets/in.svg", "assets/fan.svg", "assets/pwm.svg", "assets/temp.svg"});
-const vector<unsigned int> Device::sensor_max_vals({5000, 2500, 5, 100000});
+const vector<int> Device::sensor_max_vals({5000, 2500, 5, 100000});
 const vector<string> Device::sensor_units({" V", " RPM", " V", " \u2103"});
 
 Device::Device(string file_path)
diff --git a/src/device.h b/src/device.h
index 661e4e3..5f91cc8 100644
--- a/src/device.h
+++ b/src/device.h
@@ -32,7 +32,7 @@ class Device {
   static const vector<string> sensor_types;
   static const vector<string> sensor_types_paths;
   static const vector<string> sensor_types_icons;
-  static const vector<unsigned int> sensor_max_vals;
+  static const vector<int> sensor_max_vals;
   static const vector<string> sensor_units;
 
   const vector<unsigned int> sensor_type_counts =