diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2bf61271..30be2e91 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2999,6 +2999,8 @@ expected-test-failures:
 
     - docopt # https://github.com/docopt/docopt.hs/issues/29
 
+    - rattletrap # https://github.com/tfausak/rattletrap/issues/3
+
 # end of expected-test-failures
 
 # Benchmarks which are known not to build. Note that, currently we do not run