diff --git a/CHANGELOG.md b/CHANGELOG.md
index c49d35b..e083ea7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ Breaking changes:
 New features:
 
 Bugfixes:
+- Added missing type class instance names for `DataTransferItemKind` (#69 by @ptrfrncsmrph)
 
 Other improvements:
 
diff --git a/src/Web/HTML/Event/DataTransfer/DataTransferItem.purs b/src/Web/HTML/Event/DataTransfer/DataTransferItem.purs
index f71bc5f..bdd7479 100644
--- a/src/Web/HTML/Event/DataTransfer/DataTransferItem.purs
+++ b/src/Web/HTML/Event/DataTransfer/DataTransferItem.purs
@@ -18,10 +18,10 @@ import Data.Nullable as Nullable
 
 data DataTransferItemKind = Text | File
 
-derive instance Eq DataTransferItemKind
-derive instance Ord DataTransferItemKind
+derive instance eqDataTransferItemKind :: Eq DataTransferItemKind
+derive instance ordDataTransferItemKind :: Ord DataTransferItemKind
 
-instance Show DataTransferItemKind where
+instance showDataTransferItemKind :: Show DataTransferItemKind where
   show = case _ of
     Text -> "Text"
     File -> "File"