diff --git a/src/PDF/Layer.hs b/src/PDF/Layer.hs
index e0e3a31..cbdf137 100644
--- a/src/PDF/Layer.hs
+++ b/src/PDF/Layer.hs
@@ -89,7 +89,7 @@ unify = foldl complete emptyLayer
           docStructure =
             unifyDocStructure (docStructure tmpLayer) (docStructure older)
         , objects = mergedObjects
-        , occurrences = 
+        , occurrences =
             unifyOccurrences mergedObjects (occurrences tmpLayer) (occurrences older)
       }