diff --git a/dhall-json/dhall-json.cabal b/dhall-json/dhall-json.cabal
index c56b8e496..76eca402d 100644
--- a/dhall-json/dhall-json.cabal
+++ b/dhall-json/dhall-json.cabal
@@ -26,8 +26,6 @@ Extra-Source-Files:
     CHANGELOG.md
     tasty/data/*.dhall
     tasty/data/*.json
-    tasty/data/*.txt
-    tasty/data/*.yaml
 
 Source-Repository head
     Type: git
diff --git a/dhall-json/src/Dhall/Yaml.hs b/dhall-json/src/Dhall/Yaml.hs
index 1d4b77a55..9308443e5 100644
--- a/dhall-json/src/Dhall/Yaml.hs
+++ b/dhall-json/src/Dhall/Yaml.hs
@@ -16,10 +16,8 @@ import Data.Monoid ((<>))
 import Data.Text (Text)
 import Dhall.JSON (Conversion(..), SpecialDoubleMode(..), codeToValue)
 import Options.Applicative (Parser)
-import Data.ByteString.Lazy (toStrict)
 
 import qualified Data.Aeson
-import qualified Data.ByteString
 import qualified Data.Vector
 import qualified Dhall
 import qualified Options.Applicative
diff --git a/dhall-yaml/dhall-yaml.cabal b/dhall-yaml/dhall-yaml.cabal
index 9ab2d579a..aa5cdee97 100644
--- a/dhall-yaml/dhall-yaml.cabal
+++ b/dhall-yaml/dhall-yaml.cabal
@@ -21,6 +21,9 @@ Category: Compiler
 Extra-Source-Files:
     CHANGELOG.md
     README.md
+    tasty/data/*.dhall
+    tasty/data/*.yaml
+    tasty/data/*.txt
 
 Source-Repository head
     Type: git