diff --git a/build-constraints.yaml b/build-constraints.yaml
index 98ed631c..db7f471a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3073,6 +3073,9 @@ expected-test-failures:
 
     # https://github.com/beijaflor-io/haskell-language-dockerfile/issues/1
     - language-dockerfile
+
+    # https://github.com/MichelBoucey/glabrous/issues/1
+    - glabrous
 # end of expected-test-failures
 
 # Benchmarks which are known not to build. Note that, currently we do not run