diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6e11f220..0ffb130c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -209,8 +209,10 @@ packages:
         - scrobble
         - shell-conduit
         - sourcemap
+        - hindent
+        - descriptive
         # requires old haddock currently - haskell-docs
-        # TODO: Add hindent and structured-haskell-mode once they've been ported to HSE 1.16.
+        # TODO: Add structured-haskell-mode once they've been ported to HSE 1.16.
 
     # GHC 7.6
     # "Alberto G. Corona <agocorona@gmail.com>":
@@ -690,7 +692,7 @@ packages:
 
     "Alexandr Kurilin alex@kurilin.net @alex_kurilin":
         - bcrypt
-        
+
     "Jeffrey Rosenbluth jeffrey.rosenbluth@gmail.com":
         - palette
         - diagrams-canvas