diff --git a/src/Dodge/Placement/Instance/Sensor.hs b/src/Dodge/Placement/Instance/Sensor.hs
index af8f765d7..89702906d 100644
--- a/src/Dodge/Placement/Instance/Sensor.hs
+++ b/src/Dodge/Placement/Instance/Sensor.hs
@@ -1,5 +1,3 @@
-{-# LANGUAGE LambdaCase #-}
-
 module Dodge.Placement.Instance.Sensor (
     lightSensor,
     damageSensor,
diff --git a/src/Dodge/Terminal.hs b/src/Dodge/Terminal.hs
index c26f6cb76..3ce713334 100644
--- a/src/Dodge/Terminal.hs
+++ b/src/Dodge/Terminal.hs
@@ -1,5 +1,4 @@
 {-# LANGUAGE LambdaCase #-}
-{-# LANGUAGE TupleSections #-}
 
 module Dodge.Terminal (
     makeTermLine,
@@ -162,8 +161,8 @@ data TabCompletion a
     | TabMultiComplete [String]
     | TabFail
 
-data RecCommands a = 
-    RCommands {_rCommands :: (PTE.TrieMap Char (Either (RecCommands a) a))}
+newtype RecCommands a = 
+    RCommands {_rCommands :: PTE.TrieMap Char (Either (RecCommands a) a)}
 
 -- assumes that each command Trie has at least one successful command
 recComFindMin :: RecCommands a -> Maybe ([String], a)
@@ -207,9 +206,6 @@ recComFindPredecessor (s:ss) (RCommands m)
             Just (s',Left rm') -> recComFindMax rm' & _Just . _1 .:~ s'
             Nothing -> Nothing
 recComFindPredecessor [] rm = recComFindMax rm
---
---recComFindPredecessor :: [String] -> RecCommands a -> Maybe ([String],a)
---recComFindPredecessor (s:ss) (RCommands m) = Nothing
 
 instance Semigroup (RecCommands a) where
     RCommands x <> RCommands y = RCommands $ x <> y
@@ -221,7 +217,7 @@ instance Monoid (RecCommands a) where
 tbComplete :: String -> PTE.TrieMap Char a -> TabCompletion a
 tbComplete s t = case e of
     [] | Just x <- mx -> TabMatch x
-    [] -> case fmap fst $ PTE.toList t' of
+    [] -> case fst <$> PTE.toList t' of
         [] -> TabFail
         ss -> TabMultiComplete ss
     _ -> TabComplete e
@@ -229,14 +225,14 @@ tbComplete s t = case e of
     (e, mx, t') = PTE.splitPrefix $ PTE.deletePrefix s t
 
 recTabComplete :: String -> TCommands -> TabCompletion [TerminalLine]
-recTabComplete s (RCommands t) = fromMaybe (TabMultiComplete $ allstrings $ t) $ do
+recTabComplete s (RCommands t) = fromMaybe (TabMultiComplete $ allstrings t) $ do
     (s1,ss) <- stripHead $ words s
-    case tbComplete s1 t of
-        TabComplete e -> return $ TabComplete e
-        TabMultiComplete es -> return $ TabMultiComplete (fmap (s1 <>) es)
-        TabFail -> return $ TabFail
-        TabMatch (Right x) -> return $ TabMatch x
-        TabMatch (Left rm) -> return $ recTabComplete (unwords ss) rm
+    return $ case tbComplete s1 t of
+        TabComplete e -> TabComplete e
+        TabMultiComplete es -> TabMultiComplete (fmap (s1 <>) es)
+        TabFail -> TabFail
+        TabMatch (Right x) -> TabMatch x
+        TabMatch (Left rm) -> recTabComplete (unwords ss) rm
   where
     stripHead (x:xs) = Just (x,xs)
     stripHead _ = Nothing