diff --git a/src/RageInputDevice.cpp b/src/RageInputDevice.cpp
index 084a1ed9e5..544943bf84 100644
--- a/src/RageInputDevice.cpp
+++ b/src/RageInputDevice.cpp
@@ -63,6 +63,8 @@ static void InitNames()
 	g_mapNamesToString[KEY_LSUPER] = "left super";
 	g_mapNamesToString[KEY_RSUPER] = "right super";
 	g_mapNamesToString[KEY_MENU] = "menu";
+	
+	g_mapNamesToString[KEY_FN] = "function";
 
 	g_mapNamesToString[KEY_NUMLOCK] = "num lock";
 	g_mapNamesToString[KEY_SCRLLOCK] = "scroll lock";
diff --git a/src/RageInputDevice.h b/src/RageInputDevice.h
index a81401e6a3..c8591b202f 100644
--- a/src/RageInputDevice.h
+++ b/src/RageInputDevice.h
@@ -221,6 +221,8 @@ enum DeviceButton
 	KEY_LSUPER,
 	KEY_RSUPER,
 	KEY_MENU,
+	
+	KEY_FN, // Laptop function keys.
 
 	KEY_NUMLOCK,
 	KEY_SCRLLOCK,