diff --git a/pyo3-benches/Cargo.toml b/pyo3-benches/Cargo.toml
index c2c9d67f8fd..0c7c4a7a1c4 100644
--- a/pyo3-benches/Cargo.toml
+++ b/pyo3-benches/Cargo.toml
@@ -19,6 +19,9 @@ num-bigint = "0.4.3"
 rust_decimal = { version = "1.0.0", default-features = false }
 hashbrown = "0.16"
 
+[features]
+abi3 = ["pyo3-build-config/abi3"]
+
 [[bench]]
 name = "bench_any"
 harness = false