diff --git a/examples/demonstration/router_api.py b/examples/demonstration/router_api.py
index 6f18ddb..537c15a 100644
--- a/examples/demonstration/router_api.py
+++ b/examples/demonstration/router_api.py
@@ -28,6 +28,6 @@ def sim_auth(request: Request):
         max_age=request.auth.expires,
         expires=request.auth.expires,
         httponly=request.auth.http,
-        samesite=request.auth.samesite,
+        samesite=request.auth.same_site,
     )
     return response
diff --git a/src/fastapi_oauth2/config.py b/src/fastapi_oauth2/config.py
index 954247c..da9ffea 100644
--- a/src/fastapi_oauth2/config.py
+++ b/src/fastapi_oauth2/config.py
@@ -10,7 +10,7 @@ class OAuth2Config:
 
     enable_ssr: bool
     allow_http: bool
-    samesite: str
+    same_site: str
     jwt_secret: str
     jwt_expires: int
     jwt_algorithm: str
@@ -21,7 +21,7 @@ def __init__(
             *,
             enable_ssr: bool = True,
             allow_http: bool = False,
-            samesite: str = "lax",
+            same_site: str = "lax",
             jwt_secret: str = "",
             jwt_expires: Union[int, str] = 900,
             jwt_algorithm: str = "HS256",
@@ -31,7 +31,7 @@ def __init__(
             os.environ["OAUTHLIB_INSECURE_TRANSPORT"] = "1"
         self.enable_ssr = enable_ssr
         self.allow_http = allow_http
-        self.samesite = samesite
+        self.same_site = same_site
         self.jwt_secret = jwt_secret
         self.jwt_expires = int(jwt_expires)
         self.jwt_algorithm = jwt_algorithm
diff --git a/src/fastapi_oauth2/core.py b/src/fastapi_oauth2/core.py
index c226e55..9f27ed3 100644
--- a/src/fastapi_oauth2/core.py
+++ b/src/fastapi_oauth2/core.py
@@ -145,7 +145,7 @@ async def token_redirect(self, request: Request, **kwargs) -> RedirectResponse:
             expires=request.auth.expires,
             secure=not request.auth.http,
             httponly=True,
-            samesite=request.auth.samesite,
+            samesite=request.auth.same_site,
         )
         return response
 
diff --git a/src/fastapi_oauth2/middleware.py b/src/fastapi_oauth2/middleware.py
index 6ff5eb8..b3166b4 100644
--- a/src/fastapi_oauth2/middleware.py
+++ b/src/fastapi_oauth2/middleware.py
@@ -37,9 +37,9 @@ class Auth(AuthCredentials):
 
     ssr: bool
     http: bool
-    samesite: str
     secret: str
     expires: int
+    same_site: str
     algorithm: str
     scopes: List[str]
     provider: OAuth2Core
@@ -91,9 +91,9 @@ def __init__(
     ) -> None:
         Auth.ssr = config.enable_ssr
         Auth.http = config.allow_http
-        Auth.samesite = config.samesite
         Auth.secret = config.jwt_secret
         Auth.expires = config.jwt_expires
+        Auth.same_site = config.same_site
         Auth.algorithm = config.jwt_algorithm
         Auth.clients = {
             client.backend.name: OAuth2Core(client)
diff --git a/tests/conftest.py b/tests/conftest.py
index 709b882..a71bc0e 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -75,7 +75,7 @@ def auth(request: Request):
                 max_age=request.auth.expires,
                 expires=request.auth.expires,
                 httponly=request.auth.http,
-                samesite=request.auth.samesite,
+                samesite=request.auth.same_site,
             )
             return response