diff --git a/build-constraints.yaml b/build-constraints.yaml
index b767da42..b2e2fe64 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3421,6 +3421,7 @@ packages:
         # https://github.com/fpco/stackage/issues/2937
         - vty < 5.18
 
+        # https://github.com/fpco/stackage/issues/2939
         - Glob < 0.9.0
 # end of packages