diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6b23d013..640c774d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2713,6 +2713,13 @@ expected-test-failures:
     - hakyll
 # end of expected-test-failures
 
+# Benchmarks which are known not to build. Note that, currently we do not run
+# benchmarks, and therefore failures are only for building, not running.
+expected-benchmark-failures:
+    []
+
+# end of expected-benchmark-failures
+
 
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures: