diff --git a/crawl/crawl.py b/crawl/crawl.py
index 132acee..ee32971 100644
--- a/crawl/crawl.py
+++ b/crawl/crawl.py
@@ -185,7 +185,7 @@ async def async_print(url):
 async def async_crawler(url):
     queue = [url]
     crawled = []
-    while (not queue) or (len(crawled) < HARD_LIMIT):
+    while queue or (len(crawled) < HARD_LIMIT):
         async with aiohttp.ClientSession() as session:
             try:
                 url = queue.pop(0)