diff --git a/build-constraints.yaml b/build-constraints.yaml
index 84923ca5..18f5e99e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1914,6 +1914,9 @@ expected-test-failures:
     # https://github.com/peti/language-nix/issues/1
     - language-nix
 
+    # https://github.com/kazu-yamamoto/ghc-mod/issues/611
+    - ghc-mod
+
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4