diff --git a/src/myfasthtml/auth/utils.py b/src/myfasthtml/auth/utils.py
index 5567995..b59686d 100644
--- a/src/myfasthtml/auth/utils.py
+++ b/src/myfasthtml/auth/utils.py
@@ -33,6 +33,8 @@ DEFAULT_SKIP_PATTERNS = [
     '/logout',
 ]
 
+http_client = httpx
+
 
 def create_auth_beforeware(additional_patterns: Optional[List[str]] = None) -> Beforeware:
   """
@@ -174,7 +176,7 @@ def login_user(email: str, password: str) -> Optional[Dict[str, Any]]:
       None if authentication fails
   """
   try:
-    response = httpx.post(
+    response = http_client.post(
       f"{API_BASE_URL}/auth/login",
       data={"username": email, "password": password},
       headers={"Content-Type": "application/x-www-form-urlencoded"},
@@ -200,6 +202,7 @@ def register_user(email: str, username: str, password: str) -> Optional[Dict[str
 
   Args:
       email: User email address
+      username: User name
       password: User password
 
   Returns:
@@ -207,9 +210,9 @@ def register_user(email: str, username: str, password: str) -> Optional[Dict[str
       None if registration fails
   """
   try:
-    response = httpx.post(
+    response = http_client.post(
       f"{API_BASE_URL}/auth/register",
-      json={"email": email, "username": username,  "password": password},
+      json={"email": email, "username": username, "password": password},
       timeout=10.0
     )
     
@@ -233,7 +236,7 @@ def refresh_access_token(refresh_token: str) -> Optional[Dict[str, Any]]:
       None if refresh fails
   """
   try:
-    response = httpx.post(
+    response = http_client.post(
       f"{API_BASE_URL}/auth/refresh",
       json={"refresh_token": refresh_token},
       timeout=10.0
@@ -263,7 +266,7 @@ def get_user_info(access_token: str) -> Optional[Dict[str, Any]]:
       None if request fails
   """
   try:
-    response = httpx.get(
+    response = http_client.get(
       f"{API_BASE_URL}/auth/me",
       headers={"Authorization": f"Bearer {access_token}"},
       timeout=10.0
@@ -288,7 +291,7 @@ def logout_user(refresh_token: str) -> bool:
       True if logout successful, False otherwise
   """
   try:
-    response = httpx.post(
+    response = http_client.post(
       f"{API_BASE_URL}/auth/logout",
       json={"refresh_token": refresh_token},
       timeout=10.0
diff --git a/tests/auth/test_login.py b/tests/auth/test_login.py
index 0017f54..80e8c7f 100644
--- a/tests/auth/test_login.py
+++ b/tests/auth/test_login.py
@@ -3,6 +3,7 @@ import os
 import pytest
 from fasthtml.fastapp import fast_app
 
+import myfasthtml.auth.utils
 from myfasthtml.auth.routes import setup_auth_routes
 from myfasthtml.auth.utils import create_auth_beforeware, register_user
 from myfasthtml.core.testclient import MyTestClient
@@ -24,7 +25,12 @@ def rt(app):
 @pytest.fixture()
 def user(app):
   user = MyTestClient(app)
-  return user
+  previous = myfasthtml.auth.utils.http_client
+  myfasthtml.auth.utils.http_client = user.client
+  
+  yield user
+  
+  myfasthtml.auth.utils.http_client = previous
 
 
 @pytest.fixture(autouse=True)
@@ -48,12 +54,15 @@ def test_i_cannot_login_with_wrong_credentials(user):
   user.should_see("Invalid email or password. Please try again.")
 
 
-def test_i_can_login_with_correct_credentials(user):
+def test_i_can_login_with_correct_credentials(user, rt):
   # create user
   register_user("user@email.com", "user", "#Passw0rd")
   
+  @rt('/')
+  def index(): return "You are now logged in !"
+  
   user.open("/login")
   form = user.find_form(fields=["Email", "Password"])
   form.fill(Email="user@email.com", Password="#Passw0rd")
   form.submit()
-  user.should_see("You are now logged in")
+  user.should_see("You are now logged in !")