diff --git a/build-constraints.yaml b/build-constraints.yaml
index 980c2580..3877e6ba 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -863,6 +863,9 @@ expected-haddock-failures:
     # https://github.com/ekmett/gl/issues/4
     - gl
 
+    # https://github.com/fpco/stackage/issues/385
+    - HaXml
+
 # 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.