diff --git a/vector.lua b/vector.lua
index 7274ac3..0cf717e 100644
--- a/vector.lua
+++ b/vector.lua
@@ -29,6 +29,7 @@ metatable = {
 		if index ~= nil then
 			return rawset(table, index, value)
 		end
+		return rawset(table, key, value)
 	end
 }