diff --git a/build-constraints.yaml b/build-constraints.yaml
index 92b58259..9dd626e8 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2875,6 +2875,9 @@ expected-test-failures:
     # https://github.com/hamsterdam/kawhi/issues/1
     - kawhi
 
+    # https://github.com/athanclark/tries/issues/2
+    - tries
+
 # end of expected-test-failures
 
 # Benchmarks which are known not to build. Note that, currently we do not run