Add missing upvalue.

diff --git a/Runes.lua b/Runes.lua
index d73a0f9..c86db61 100644
--- a/Runes.lua
+++ b/Runes.lua
@@ -28,6 +28,7 @@ local OvaleState = nil
 --local debugprint = print
 local ipairs = ipairs
 local pairs = pairs
+local type = type
 local wipe = wipe
 local API_GetRuneCooldown = GetRuneCooldown
 local API_GetRuneType = GetRuneType