diff --git a/interspersed.cabal b/interspersed.cabal
--- a/interspersed.cabal
+++ b/interspersed.cabal
@@ -1,7 +1,7 @@
 name:
   interspersed
 version:
-  0.1.1
+  0.1.1.1
 synopsis:
   An abstraction over interspersing monadic actions
 description:
diff --git a/library/Interspersed.hs b/library/Interspersed.hs
--- a/library/Interspersed.hs
+++ b/library/Interspersed.hs
@@ -39,5 +39,5 @@
   \sep ->
     StateT $
     \first ->
-      fmap (\a -> (a, False)) $
+      liftM (\a -> (a, False)) $
       unless first sep *> fx