diff --git a/src/lib.rs b/src/lib.rs
index 4abbabc..eed63d5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1154,55 +1154,55 @@ impl CorsOptions {
     }
 
     /// Sets the allowed origins
-    pub fn allowed_origins(&mut self, allowed_origins: AllowedOrigins) -> &mut Self {
+    pub fn allowed_origins(mut self, allowed_origins: AllowedOrigins) -> Self {
         self.allowed_origins = allowed_origins;
         self
     }
 
     /// Sets the allowed methodes
-    pub fn allowed_methods(&mut self, allowed_methods: AllowedMethods) -> &mut Self {
+    pub fn allowed_methods(mut self, allowed_methods: AllowedMethods) -> Self {
         self.allowed_methods = allowed_methods;
         self
     }
 
     /// Sets the allowed headers
-    pub fn allowed_headers(&mut self, allowed_headers: AllowedHeaders) -> &mut Self {
+    pub fn allowed_headers(mut self, allowed_headers: AllowedHeaders) -> Self {
         self.allowed_headers = allowed_headers;
         self
     }
 
     /// Marks if credentials are allowed
-    pub fn allow_credentials(&mut self, allow_credentials: bool) -> &mut Self {
+    pub fn allow_credentials(mut self, allow_credentials: bool) -> Self {
         self.allow_credentials = allow_credentials;
         self
     }
 
     /// Sets the expose headers
-    pub fn expose_headers(&mut self, expose_headers: HashSet<String>) -> &mut Self {
+    pub fn expose_headers(mut self, expose_headers: HashSet<String>) -> Self {
         self.expose_headers = expose_headers;
         self
     }
 
     /// Sets the max age
-    pub fn max_age(&mut self, max_age: Option<usize>) -> &mut Self {
+    pub fn max_age(mut self, max_age: Option<usize>) -> Self {
         self.max_age = max_age;
         self
     }
 
     /// Marks if wildcards are send
-    pub fn send_wildcard(&mut self, send_wildcard: bool) -> &mut Self {
+    pub fn send_wildcard(mut self, send_wildcard: bool) -> Self {
         self.send_wildcard = send_wildcard;
         self
     }
 
     /// Sets the base of the fairing route
-    pub fn fairing_route_base<S: Into<String>>(&mut self, fairing_route_base: S) -> &mut Self {
+    pub fn fairing_route_base<S: Into<String>>(mut self, fairing_route_base: S) -> Self {
         self.fairing_route_base = fairing_route_base.into();
         self
     }
 
     /// Sets the rank of the fairing route
-    pub fn fairing_route_rank(&mut self, fairing_route_rank: isize) -> &mut Self {
+    pub fn fairing_route_rank(mut self, fairing_route_rank: isize) ->  Self {
         self.fairing_route_rank = fairing_route_rank;
         self
     }
@@ -2082,8 +2082,8 @@ mod tests {
     #[test]
     fn cors_options_from_builder_pattern() {
         let allowed_origins = AllowedOrigins::some_exact(&["https://www.acme.com"]);
-        let mut cors_options_from_builder = CorsOptions::default();
-        let _ = cors_options_from_builder.allowed_origins(allowed_origins)
+        let cors_options_from_builder = CorsOptions::default()
+            .allowed_origins(allowed_origins)
             .allowed_methods(vec![http::Method::Get].into_iter().map(From::from).collect())
             .allowed_headers(AllowedHeaders::some(&[&"Authorization", "Accept"]))
             .allow_credentials(true)