diff --git a/otouto/plugins/gImages.lua b/otouto/plugins/gImages.lua
index 661a9ec..1227e89 100644
--- a/otouto/plugins/gImages.lua
+++ b/otouto/plugins/gImages.lua
@@ -4,6 +4,7 @@
 local gImages = {}
 
 local HTTPS = require('ssl.https')
+HTTPS.timeout = 10
 local URL = require('socket.url')
 local JSON = require('dkjson')
 local redis = (loadfile "./otouto/redis.lua")()
diff --git a/otouto/utilities.lua b/otouto/utilities.lua
index 27e7b6b..4d0b743 100644
--- a/otouto/utilities.lua
+++ b/otouto/utilities.lua
@@ -774,6 +774,7 @@ function get_last_modified_header(url)
 	url = url,
 	redirect = do_redir
   }
+  if not header then return end
   if header["last-modified"] then
     last_modified = header["last-modified"]
   elseif header["Last-Modified"] then