diff --git a/source/library/Language/Haskell/Brittany/Internal/WriteBriDoc/Types.hs b/source/library/Language/Haskell/Brittany/Internal/WriteBriDoc/Types.hs
index 35849be..1e906ae 100644
--- a/source/library/Language/Haskell/Brittany/Internal/WriteBriDoc/Types.hs
+++ b/source/library/Language/Haskell/Brittany/Internal/WriteBriDoc/Types.hs
@@ -16,7 +16,7 @@ import           Language.Haskell.Brittany.Internal.Types
 
 
 
-data PlanneSpace
+data PlannedSpace
   = PlannedNone
   | PlannedSameline Int
   | PlannedNewline Int
@@ -45,7 +45,7 @@ data LayoutState = LayoutState
                                   -- on the first indented element have an
                                   -- annotation offset relative to the last
                                   -- non-indented element, which is confusing.
-  , _lstate_plannedSpace     :: PlanneSpace
+  , _lstate_plannedSpace     :: PlannedSpace
   -- , _lstate_isNewline     :: NewLineState
   --     -- captures if the layouter currently is in a new line, i.e. if the
   --     -- current line only contains (indentation) spaces.