diff --git a/src/Data/Syntax/Comment.hs b/src/Data/Syntax/Comment.hs
index 5e4e4f9a9..3dd32adb9 100644
--- a/src/Data/Syntax/Comment.hs
+++ b/src/Data/Syntax/Comment.hs
@@ -1,10 +1,14 @@
 module Data.Syntax.Comment where
 
+import Data.Functor.Classes.Eq.Generic
+import GHC.Generics
 import Prologue
 
 -- | An unnested comment (line or block).
 newtype Comment a = Comment { commentContent :: ByteString }
-  deriving (Eq, Show)
+  deriving (Eq, Generic1, Show)
+
+instance Eq1 Comment where liftEq = genericLiftEq
 
 -- TODO: nested comment types
 -- TODO: documentation comment types