diff --git a/scripts/http-backup-finder.nse b/scripts/http-backup-finder.nse
index dca42dfa6..b077a3e54 100644
--- a/scripts/http-backup-finder.nse
+++ b/scripts/http-backup-finder.nse
@@ -84,7 +84,7 @@ end
 
 action = function(host, port)
 
-	local crawler = httpspider.Crawler:new(host, port, '/', { scriptname = SCRIPT_NAME } )
+	local crawler = httpspider.Crawler:new(host, port, nil, { scriptname = SCRIPT_NAME } )
 	crawler:set_timeout(10000)
 
 	local res, res404, known404 = http.identify_404(host, port)
diff --git a/scripts/http-grep.nse b/scripts/http-grep.nse
index 632eb9377..03740f80d 100644
--- a/scripts/http-grep.nse
+++ b/scripts/http-grep.nse
@@ -70,7 +70,7 @@ action = function(host, port)
 		return stdnse.format_output(true, "ERROR: Argument http-grep.match was not set")
 	end
 	
-	local crawler = httpspider.Crawler:new(host, port, '/', { scriptname = SCRIPT_NAME } )
+	local crawler = httpspider.Crawler:new(host, port, nil, { scriptname = SCRIPT_NAME } )
 	local results = {}
 
 	-- set timeout to 10 seconds
diff --git a/scripts/http-open-redirect.nse b/scripts/http-open-redirect.nse
index 5963c2e60..9b75e228c 100644
--- a/scripts/http-open-redirect.nse
+++ b/scripts/http-open-redirect.nse
@@ -87,7 +87,7 @@ end
 
 action = function(host, port)
 
-	local crawler = httpspider.Crawler:new(host, port, '/', { scriptname = SCRIPT_NAME, redirect_ok = false } )
+	local crawler = httpspider.Crawler:new(host, port, nil, { scriptname = SCRIPT_NAME, redirect_ok = false } )
 	crawler:set_timeout(10000)
 	
 	local results = {}