diff --git a/src/fastapi_redis_cache/cache.py b/src/fastapi_redis_cache/cache.py
index 5257a14..6b29dbb 100644
--- a/src/fastapi_redis_cache/cache.py
+++ b/src/fastapi_redis_cache/cache.py
@@ -39,6 +39,8 @@ async def inner_wrapper(*args, **kwargs):
             create_response_directly = not response
             if create_response_directly:
                 response = Response()
+                if "content-length" in response.headers.keys():
+                    del response.headers["content-length"]
             redis_cache = FastApiRedisCache()
             if redis_cache.not_connected or redis_cache.request_is_not_cacheable(request):
                 # if the redis client is not connected or request is not cacheable, no caching behavior is performed.