diff --git a/yesod-form/ChangeLog.md b/yesod-form/ChangeLog.md
index 9b0d32c8..f6d07e92 100644
--- a/yesod-form/ChangeLog.md
+++ b/yesod-form/ChangeLog.md
@@ -1,5 +1,9 @@
 # ChangeLog for yesod-form
 
+## 1.6.4
+
+* Make FormResult an instance of Eq
+
 ## 1.6.3
 
 * make sure a select field does not lose the selected value even if a validation on the
diff --git a/yesod-form/Yesod/Form/Types.hs b/yesod-form/Yesod/Form/Types.hs
index 898e319b..bfc3e179 100644
--- a/yesod-form/Yesod/Form/Types.hs
+++ b/yesod-form/Yesod/Form/Types.hs
@@ -50,7 +50,7 @@ import Data.Foldable
 data FormResult a = FormMissing
                   | FormFailure [Text]
                   | FormSuccess a
-    deriving Show
+    deriving (Show, Eq)
 instance Functor FormResult where
     fmap _ FormMissing = FormMissing
     fmap _ (FormFailure errs) = FormFailure errs
diff --git a/yesod-form/yesod-form.cabal b/yesod-form/yesod-form.cabal
index e2c1ae5d..817ef8db 100644
--- a/yesod-form/yesod-form.cabal
+++ b/yesod-form/yesod-form.cabal
@@ -1,5 +1,5 @@
 name:            yesod-form
-version:         1.6.3
+version:         1.6.4
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>