diff --git a/ppf.py b/ppf.py
index bc84c2a..841c55e 100755
--- a/ppf.py
+++ b/ppf.py
@@ -330,6 +330,7 @@ if __name__ == '__main__':
           rows = urldb.execute(qurl, (config.ppf.max_fail, config.ppf.checktime, config.ppf.perfail_checktime, int(time.time()))).fetchall()
           reqtime = time.time()
         if len(rows) < config.ppf.threads:
+          time.sleep(5)
           rows = []
         else:
           nao = time.time()