diff --git a/mainloop.hpp b/mainloop.hpp
index cc8de94..6ce02a2 100644
--- a/mainloop.hpp
+++ b/mainloop.hpp
@@ -25,7 +25,9 @@
 static constexpr auto sensorID = 0;
 static constexpr auto sensorLabel = 1;
 static constexpr auto sensorAccuracy = 2;
-using SensorIdentifiers = std::tuple<std::string, std::string, std::string>;
+static constexpr auto sensorPriority = 3;
+using SensorIdentifiers =
+    std::tuple<std::string, std::string, std::string, std::string>;
 
 /** @class MainLoop
  *  @brief hwmon-readd main application loop.