diff --git a/build-constraints.yaml b/build-constraints.yaml
index 95a10ca4..858928bb 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2203,6 +2203,7 @@ packages:
         - mtl-compat
         - ordered-containers
         - proxied
+        - rdtsc
         - singleton-nats
         - text-show
         - text-show-instances