diff --git a/test/Spec.hs b/test/Spec.hs
index ab58ba320..ba2c9bd74 100644
--- a/test/Spec.hs
+++ b/test/Spec.hs
@@ -2,6 +2,7 @@ module Main where
 
 import qualified AlignmentSpec
 import qualified CorpusSpec
+import qualified Data.Adjoined.Spec
 import qualified InterpreterSpec
 import qualified OrderedMapSpec
 import qualified PatchOutputSpec
@@ -12,6 +13,7 @@ main :: IO ()
 main = hspec $ parallel $ do
   describe "Alignment" AlignmentSpec.spec
   describe "Corpus" CorpusSpec.spec
+  describe "Data.Adjoined" Data.Adjoined.Spec.spec
   describe "Interpreter" InterpreterSpec.spec
   describe "OrderedMap" OrderedMapSpec.spec
   describe "PatchOutput" PatchOutputSpec.spec