diff --git a/actix-web/CHANGES.md b/actix-web/CHANGES.md
index c6454ed65fc..3300a6ffcb1 100644
--- a/actix-web/CHANGES.md
+++ b/actix-web/CHANGES.md
@@ -9,6 +9,7 @@
 ### Changed
 
 - Minimum supported Rust version (MSRV) is now 1.72.
+- Avoid type confusion in rare circumstances
 
 ## 4.5.1
 
diff --git a/actix-web/src/app_service.rs b/actix-web/src/app_service.rs
index f2dca954c0c..65a6ed87beb 100644
--- a/actix-web/src/app_service.rs
+++ b/actix-web/src/app_service.rs
@@ -263,8 +263,9 @@ impl ServiceFactory<ServiceRequest> for AppRoutingFactory {
             let guards = guards.borrow_mut().take().unwrap_or_default();
             let factory_fut = factory.new_service(());
             async move {
-                let service = factory_fut.await?;
-                Ok((path, guards, service))
+                factory_fut
+                    .await
+                    .map(move |service| (path, guards, service))
             }
         }));
 
diff --git a/actix-web/src/scope.rs b/actix-web/src/scope.rs
index 27a2827a63b..adc9f75d3bc 100644
--- a/actix-web/src/scope.rs
+++ b/actix-web/src/scope.rs
@@ -470,8 +470,9 @@ impl ServiceFactory<ServiceRequest> for ScopeFactory {
             let guards = guards.borrow_mut().take().unwrap_or_default();
             let factory_fut = factory.new_service(());
             async move {
-                let service = factory_fut.await?;
-                Ok((path, guards, service))
+                factory_fut
+                    .await
+                    .map(move |service| (path, guards, service))
             }
         }));