diff --git a/calibre-plugin/plugin-defaults.ini b/calibre-plugin/plugin-defaults.ini
index 2022b21..f99055e 100644
--- a/calibre-plugin/plugin-defaults.ini
+++ b/calibre-plugin/plugin-defaults.ini
@@ -2160,6 +2160,8 @@ extracategories:Lord of the Rings
 collect_series: false
 
 [www.tthfanfic.org]
+user_agent:
+slow_down_sleep_time:2
 ## Some sites do not require a login, but do require the user to
 ## confirm they are adult for adult content.  In commandline version,
 ## this should go in your personal.ini, not defaults.ini.
diff --git a/fanficfare/defaults.ini b/fanficfare/defaults.ini
index b9e060e..e08d2e8 100644
--- a/fanficfare/defaults.ini
+++ b/fanficfare/defaults.ini
@@ -2133,6 +2133,8 @@ extracategories:Lord of the Rings
 collect_series: false
 
 [www.tthfanfic.org]
+user_agent:
+slow_down_sleep_time:2
 ## Some sites do not require a login, but do require the user to
 ## confirm they are adult for adult content.  In commandline version,
 ## this should go in your personal.ini, not defaults.ini.