diff --git a/flashcards/api.py b/flashcards/api.py
index 42b9bb9..0dd092d 100644
--- a/flashcards/api.py
+++ b/flashcards/api.py
@@ -43,7 +43,6 @@ class UserDetail(APIView):
             raise ValidationError('Email is required')
         if 'password' not in request.data:
             raise ValidationError('Password is required')
-
         email = request.data['email']
         existing_users = User.objects.filter(email=email)
         if existing_users.exists():
@@ -85,7 +84,7 @@ class UserLogin(APIView):
         password = request.data['password']
         user = authenticate(email=email, password=password)
 
-        if user is None:
+        if user is not None:
             raise ValidationError('Invalid email or password')
         if not user.is_active:
             raise ValidationError('Account is disabled')