diff --git a/init.lua b/init.lua
index f9d693e..468cede 100644
--- a/init.lua
+++ b/init.lua
@@ -95,7 +95,7 @@ function args()
             else
                 data=val
             end
-            if data and type(data) ~= "boolean" and ngxmatch(unescape(data),rule,"isjo") then
+            if data and type(data) ~= "boolean" and rule ~="" and ngxmatch(unescape(data),rule,"isjo") then
 				log('GET',ngx.var.request_uri,"-",rule)
                 say_html()
                 return true
@@ -109,7 +109,7 @@ end
 function url()
     if UrlDeny then
         for _,rule in pairs(urlrules) do
-            if ngxmatch(ngx.var.request_uri,rule,"isjo") then
+            if rule ~="" and ngxmatch(ngx.var.request_uri,rule,"isjo") then
                 log('GET',ngx.var.request_uri,"-",rule)
                 say_html()
                 return true
@@ -122,7 +122,7 @@ end
 function ua()
     local ua = ngx.var.http_user_agent
     for _,rule in pairs(uarules) do
-        if ngxmatch(ua,rule,"isjo") then
+        if rule ~="" and ngxmatch(ua,rule,"isjo") then
             log('UA',ngx.var.request_uri,"-",rule)
         return true
         end
@@ -131,7 +131,7 @@ function ua()
 end
 function body(data)
     for _,rule in pairs(postrules) do
-        if ngxmatch(unescape(data),rule,"isjo") then
+        if rule ~="" and ngxmatch(unescape(data),rule,"isjo") then
             log('POST',ngx.var.request_uri,data,rule)
             say_html()
             return true
@@ -143,7 +143,7 @@ function cookie()
     local ck = ngx.var.http_cookie
     if CookieCheck and ck then
         for _,rule in pairs(ckrules) do
-            if ngxmatch(ck,rule,"isjo") then
+            if rule ~="" and ngxmatch(ck,rule,"isjo") then
                 log('Cookie',ngx.var.request_uri,"-",rule)
                 say_html()
             return true