diff --git a/Cargo.toml b/Cargo.toml
index 8ff86525..f60ebc44 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,6 +16,9 @@ rust-version = "1.65"
 all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
+
 [features]
 default = ["libolm-compat"]
 js = ["getrandom/js"]
diff --git a/src/lib.rs b/src/lib.rs
index c74b4de3..17da71ab 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -206,7 +206,6 @@
     unused_qualifications,
     rust_2018_idioms
 )]
-#![allow(unexpected_cfgs)]
 #![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 mod cipher;