diff --git a/superset/config.py b/superset/config.py
index f1dc1eb58c..61b111bde5 100644
--- a/superset/config.py
+++ b/superset/config.py
@@ -263,7 +263,7 @@ SQLLAB_DEFAULT_DBID = None
 
 # The MAX duration (in seconds) a query can run for before being killed
 # by celery.
-SQLLAB_ASYNC_TIME_LIMIT_SEC = 10
+SQLLAB_ASYNC_TIME_LIMIT_SEC = 60 * 60 * 6
 
 # An instantiated derivative of werkzeug.contrib.cache.BaseCache
 # if enabled, it can be used to store the results of long-running queries