diff --git a/src/SelfMaintenance.h b/src/SelfMaintenance.h
index 6e4cb29f..2e933d39 100644
--- a/src/SelfMaintenance.h
+++ b/src/SelfMaintenance.h
@@ -35,6 +35,12 @@ public:
 
     static int getCPUTemperature();
     static int getFileSystemAvailable();
+
+private:
+    static int m_cpuSingleCoreSpeed;
+    static int m_cpuCoresCount;
+    static int m_cpuTemperatureC;
+    static int m_cpuTemperatureF;
 };