diff --git a/roku/core.py b/roku/core.py
index b171723..292f993 100644
--- a/roku/core.py
+++ b/roku/core.py
@@ -58,6 +58,7 @@
     # For devices that support being turned on/off
     'power': 'Power',
     'poweroff': 'PowerOff',
+    'poweron': 'PowerOn',
 }
 
 SENSORS = ('acceleration', 'magnetic', 'orientation', 'rotation')