diff --git a/glfw-group.cabal b/glfw-group.cabal
--- a/glfw-group.cabal
+++ b/glfw-group.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           glfw-group
-version:        0.1.0.1
+version:        0.1.0.2
 synopsis:       GLFW package with window groups destroyed together
 description:    Please see the README on GitHub at <https://github.com/YoshikuniJujo/glfw-group#readme>
 category:       Graphics
@@ -34,7 +34,6 @@
       Graphics.UI.GlfwG.Mouse
       Graphics.UI.GlfwG.Window
       Graphics.UI.GlfwG.Window.Type
-      Lib
   other-modules:
       Paths_glfw_group
   autogen-modules:
diff --git a/src/Lib.hs b/src/Lib.hs
deleted file mode 100644
--- a/src/Lib.hs
+++ /dev/null
@@ -1,6 +0,0 @@
-module Lib
-    ( someFunc
-    ) where
-
-someFunc :: IO ()
-someFunc = putStrLn "someFunc"