diff --git a/fastapi_microsoft_identity/auth_service.py b/fastapi_microsoft_identity/auth_service.py
index d9c024e..5832135 100644
--- a/fastapi_microsoft_identity/auth_service.py
+++ b/fastapi_microsoft_identity/auth_service.py
@@ -117,7 +117,7 @@ async def decorated(*args, **kwargs):
                 __decode_JWT(token_version, token, rsa_key)
                 return await f(*args, **kwargs)
             except AuthError as auth_err:
-                fastapi.Response(content=auth_err.error_msg, status_code=auth_err.status_code)
+                return fastapi.Response(content=auth_err.error_msg, status_code=auth_err.status_code)
         return fastapi.Response(content="Invalid header error: Unable to find appropriate key", status_code=401)
     return decorated
 
@@ -153,7 +153,7 @@ async def decorated(*args, **kwargs):
                 __decode_B2C_JWT(token_version, token, rsa_key)
                 return await f(*args, **kwargs)
             except AuthError as auth_err:
-                fastapi.Response(content=auth_err.error_msg, status_code=auth_err.status_code)
+                return fastapi.Response(content=auth_err.error_msg, status_code=auth_err.status_code)
         return fastapi.Response(content="Invalid header error: Unable to find appropriate key", status_code=401)
     return decorated