diff --git a/build-constraints.yaml b/build-constraints.yaml
index d36868eb..ad8672e7 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -705,7 +705,7 @@ packages:
         - perfect-hash-generator
 
     "Alan Zimmerman @alanz":
-    - ghc-exactprint < 0.6.3 # https://github.com/commercialhaskell/stackage/issues/5268
+        - ghc-exactprint < 0.6.3 # https://github.com/commercialhaskell/stackage/issues/5268
         - haskell-lsp
         - hjsmin
         - language-javascript