diff --git a/build-constraints.yaml b/build-constraints.yaml
index ce6fbd6a..96d9e99b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1677,6 +1677,9 @@ expected-test-failures:
     # https://github.com/purescript/purescript/issues/1336
     - purescript
 
+    # https://github.com/fpco/stackage/issues/733
+    - ide-backend
+
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4