diff --git a/Cargo.toml b/Cargo.toml
index adad5be..c79c8de 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -40,3 +40,4 @@ rand = "0.7"
 [[bench]]
 name = "oprf"
 harness = false
+required-features = ["bench"]