diff --git a/build-constraints.yaml b/build-constraints.yaml
index 448fd972..61e92283 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1865,6 +1865,9 @@ expected-test-failures:
     # https://github.com/futurice/waitra/issues/4
     - waitra
 
+    # https://github.com/fpco/stackage/pull/790
+    - language-lua2
+
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4