diff --git a/coursework/part1/src/Lib.hs b/coursework/part1/src/Lib.hs
index 796a737..07eec0d 100644
--- a/coursework/part1/src/Lib.hs
+++ b/coursework/part1/src/Lib.hs
@@ -1,6 +1,8 @@
 {-# LANGUAGE InstanceSigs #-}
 
-module Lib where
+module Lib (
+    processExpression
+) where
 
 import Control.Applicative (Alternative(..))
 import Data.Char (digitToInt, isDigit)