diff --git a/hledger-lib/Hledger/Utils/IO.hs b/hledger-lib/Hledger/Utils/IO.hs
index 007a1299e..0d86b4466 100644
--- a/hledger-lib/Hledger/Utils/IO.hs
+++ b/hledger-lib/Hledger/Utils/IO.hs
@@ -252,18 +252,6 @@ runPager s = do
     s
 #endif
 
--- | Given a list of arguments, split any of the form --flag=VAL or -fVAL
--- into separate list items. Multiple valueless short flags joined together is not supported.
-splitFlagsAndVals :: [String] -> [String]
-splitFlagsAndVals = concatMap $
-  \case
-    a@('-':'-':_) | '=' `elem` a -> let (x,y) = break (=='=') a in [x, drop 1 y]
-    a@('-':f:_:_) | not $ f=='-' -> [take 2 a, drop 2 a]
-    a -> [a]
-
-toFlag [c] = ['-',c]
-toFlag s   = '-':'-':s
-
 -- | Given one or more long or short option names, read the rightmost value of this option from the command line arguments.
 -- If the value is missing raise an error.
 getOpt :: [String] -> IO (Maybe String)
@@ -276,6 +264,19 @@ getOpt names = do
       ([],flag:_)   -> error' $ flag <> " requires a value"
       (argsafter,_) -> Just $ last argsafter
 
+-- | Given a list of arguments, split any of the form --flag=VAL or -fVAL
+-- into separate list items. Multiple valueless short flags joined together is not supported.
+splitFlagsAndVals :: [String] -> [String]
+splitFlagsAndVals = concatMap $
+  \case
+    a@('-':'-':_) | '=' `elem` a -> let (x,y) = break (=='=') a in [x, drop 1 y]
+    a@('-':f:_:_) | not $ f=='-' -> [take 2 a, drop 2 a]
+    a -> [a]
+
+-- | Convert a short or long flag name to a flag with leading hyphen(s).
+toFlag [c] = ['-',c]
+toFlag s   = '-':'-':s
+
 -- | Parse y/yes/always or n/no/never to true or false, or with any other value raise an error.
 parseYN :: String -> Bool
 parseYN s
diff --git a/hledger-ui/Hledger/UI/UIOptions.hs b/hledger-ui/Hledger/UI/UIOptions.hs
index 05c37a177..d04653c0f 100644
--- a/hledger-ui/Hledger/UI/UIOptions.hs
+++ b/hledger-ui/Hledger/UI/UIOptions.hs
@@ -1,11 +1,7 @@
 {-# LANGUAGE CPP #-}
 {-# LANGUAGE TemplateHaskell #-}
-{-|
 
--}
-
-module Hledger.UI.UIOptions
-where
+module Hledger.UI.UIOptions where
 
 import Data.Default (def)
 import Data.List (intercalate)