diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt
index a4d4b5e..d810f4a 100644
--- a/app/CMakeLists.txt
+++ b/app/CMakeLists.txt
@@ -11,6 +11,7 @@ add_executable(app
   src/main.cxx
   src/sensor/NvidiaTemperatureSensor.cxx
   src/fan/Pwm.cxx
+  src/fan/PwmControl.cxx
   src/SensorsWrapper.cxx
   src/sensor/HwmonTemperatureSensor.cxx
 )
diff --git a/app/include/fan/HwmonFan.h b/app/include/fan/HwmonFan.h
index 39c4cb3..0309ab4 100644
--- a/app/include/fan/HwmonFan.h
+++ b/app/include/fan/HwmonFan.h
@@ -2,11 +2,16 @@
 #define HWMONFAN_H_
 
 #include <fan/Fan.h>
+#include <fan/PwmControl.h>
 
 class HwmonFan : public Fan {
 public:
   void PWM(int percent) override;
   int RPM() override;
+
+private:
+  PwmControl mPwmControl;
+  // PwmSensor mPwmSensor;
 };
 
 #endif // HWMONFAN_H_