diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3fdd8e8f..93562270 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2860,7 +2860,7 @@ packages:
 
     "Mikhail Glushenkov <mikhail.glushenkov@gmail.com> @23Skidoo":
         # - Cabal take the one that ships with GHC
-        - cabal-install #< 0 # via Cabal
+        - cabal-install < 0 # via Cabal
         # - pointful # haskell-src-exts-simple
 
     "Lennart Kolmodin <kolmodin@gmail.com> @kolmodin":