diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,9 @@
+# Changelog for xml-hamlet
+
+## 0.5.0.1
+
+* Compat with GHC 8.8.1 [#147](https://github.com/snoyberg/xml/issues/147)
+
 ## 0.5.0
 
 * Upgrade to conduit 1.3
diff --git a/Text/Hamlet/XMLParse.hs b/Text/Hamlet/XMLParse.hs
--- a/Text/Hamlet/XMLParse.hs
+++ b/Text/Hamlet/XMLParse.hs
@@ -25,6 +25,9 @@
     return = Ok
     Error s >>= _ = Error s
     Ok v >>= f = f v
+#if MIN_VERSION_base(4,13,0)
+instance MonadFail Result where
+#endif
     fail = Error
 instance Functor Result where
     fmap = liftM
diff --git a/xml-hamlet.cabal b/xml-hamlet.cabal
--- a/xml-hamlet.cabal
+++ b/xml-hamlet.cabal
@@ -1,5 +1,5 @@
 Name:                xml-hamlet
-Version:             0.5.0
+Version:             0.5.0.1
 Synopsis:            Hamlet-style quasiquoter for XML content
 Homepage:            http://www.yesodweb.com/
 License:             BSD3