diff --git a/build-constraints.yaml b/build-constraints.yaml
index a8c884bc..13ef6831 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3607,6 +3607,7 @@ expected-test-failures:
     - rematch # No issue tracker, sent e-mail to maintainer https://github.com/fpco/stackage/issues/376
     - xlsior # https://github.com/rcallahan/xlsior/issues/1
     - yi-keymap-vim # https://github.com/yi-editor/yi/issues/954
+    - ghc-syb-utils # https://github.com/nominolo/ghc-syb/issues/18
 
     # Assertion failures, these can be real bugs or just limitations
     # in the test cases.