diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2ec44129..d9aea2d4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2876,7 +2876,7 @@ packages:
         - X11-xft
         - Imlib
         - xturtle
-        - gluturtle < 0 # build failure with GHC 8.4
+        - gluturtle
         - papillon
         - exception-hierarchy < 0
         - simplest-sqlite < 0