diff --git a/src/Lib.hs b/src/Lib.hs
index 6080dcf..3d7b925 100644
--- a/src/Lib.hs
+++ b/src/Lib.hs
@@ -38,10 +38,10 @@ substitute from to file =
   T.replace (T.pack from) (T.pack to) <$> T.readFile file >>= T.writeFile file
 
 substituteInteractive ::
-  String -> -- From
-  String -> -- To
-  FilePath -> -- File
-  IO ()
+    String -> -- From
+    String -> -- To
+    FilePath -> -- File
+    IO ()
 substituteInteractive from to file = do
   original <- T.readFile file
   let changed = T.replace (T.pack from) (T.pack to) original