diff --git a/build-constraints.yaml b/build-constraints.yaml
index adbe3c3c..520115b1 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -890,6 +890,9 @@ expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4
     - bytestring-progress
 
+    # https://github.com/ekmett/gl/issues/4
+    - gl
+
 # Benchmarks which should not be built. Note that Stackage does *not* generally
 # build benchmarks. The difference here will be whether dependencies for these
 # benchmarks are included or not.