diff --git a/actix-session/src/lib.rs b/actix-session/src/lib.rs
index 2c45193b1..1ad600bab 100644
--- a/actix-session/src/lib.rs
+++ b/actix-session/src/lib.rs
@@ -148,6 +148,7 @@ pub use self::{
 };
 
 #[cfg(test)]
+#[allow(missing_docs)]
 pub mod test_helpers {
     use actix_web::cookie::Key;