diff --git a/Main.hs b/Main.hs
index b384b2c..300474a 100644
--- a/Main.hs
+++ b/Main.hs
@@ -5,4 +5,6 @@ import System.Environment
 main :: IO ()
 main = do
   a <- getArgs
-  makeGUI (if null a then head a else "")
+  case null a of
+    False -> makeGUI (head a)
+    True  -> makeGUI ""