diff --git a/Text/PrettyPrint/Mainland/Class.hs b/Text/PrettyPrint/Mainland/Class.hs
--- a/Text/PrettyPrint/Mainland/Class.hs
+++ b/Text/PrettyPrint/Mainland/Class.hs
@@ -136,6 +136,9 @@
 instance Pretty L.Text where
     ppr = lazyText
 
+instance Pretty Doc where
+    ppr doc = doc
+
 instance Pretty Pos where
     ppr p@(Pos _ l c _) =
         text (posFile p) <> colon <> ppr l <> colon <> ppr c
diff --git a/mainland-pretty.cabal b/mainland-pretty.cabal
--- a/mainland-pretty.cabal
+++ b/mainland-pretty.cabal
@@ -1,5 +1,5 @@
 name:           mainland-pretty
-version:        0.6
+version:        0.6.1
 cabal-version:  >= 1.6
 license:        BSD3
 license-file:   LICENSE