diff --git a/Cargo.toml b/Cargo.toml
index f7e52a4..92fa86d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -39,6 +39,7 @@ http1 = ["hyper-util/http1"]
 http2 = ["hyper-util/http2"]
 webpki-tokio = ["webpki-roots"]
 native-tokio = ["rustls-native-certs"]
+rustls-platform-verifier = ["rustls-platform-verifier"]
 ring = ["rustls/ring"]
 tls12 = ["tokio-rustls/tls12", "rustls/tls12"]
 logging = ["log", "tokio-rustls/logging", "rustls/logging"]