diff --git a/deque.cabal b/deque.cabal
--- a/deque.cabal
+++ b/deque.cabal
@@ -1,5 +1,5 @@
 name: deque
-version: 0.4.2.1
+version: 0.4.2.2
 synopsis: Double-ended queues
 description:
   Strict and lazy implementations of Double-Ended Queue (aka Dequeue or Deque)
diff --git a/library/Deque/Lazy/Reader.hs b/library/Deque/Lazy/Reader.hs
--- a/library/Deque/Lazy/Reader.hs
+++ b/library/Deque/Lazy/Reader.hs
@@ -103,7 +103,7 @@
 
 {-|
 /O(n)/.
-Same as @(,) <$> `takeWhile` predicate <*> `dropWhile` predicate@.
+Same as @(,) '<$>' `takeWhile` predicate '<*>' `dropWhile` predicate@.
 -}
 span :: MonadReader (Deque a) m => (a -> Bool) -> m (Deque a, Deque a)
 span predicate = reader (Deque.span predicate)
diff --git a/library/Deque/Strict/Reader.hs b/library/Deque/Strict/Reader.hs
--- a/library/Deque/Strict/Reader.hs
+++ b/library/Deque/Strict/Reader.hs
@@ -103,7 +103,7 @@
 
 {-|
 /O(n)/.
-Same as @(,) <$> `takeWhile` predicate <*> `dropWhile` predicate@.
+Same as @(,) '<$>' `takeWhile` predicate '<*>' `dropWhile` predicate@.
 -}
 span :: MonadReader (Deque a) m => (a -> Bool) -> m (Deque a, Deque a)
 span predicate = reader (Deque.span predicate)