diff --git a/hwmon.hpp b/hwmon.hpp
index 6953492..2202df0 100644
--- a/hwmon.hpp
+++ b/hwmon.hpp
@@ -18,10 +18,16 @@
 static constexpr auto cfan = "fan";
 static constexpr auto ctemp = "temp";
 static constexpr auto cvolt = "in";
+static constexpr auto ccurr = "current";
+static constexpr auto cenergy = "energy";
+static constexpr auto cpower = "power";
 
 static const std::string fan = cfan;
 static const std::string temp = ctemp;
 static const std::string volt = cvolt;
+static const std::string curr = ccurr;
+static const std::string energy = cenergy;
+static const std::string power = cpower;
 }
 }