diff --git a/lib/landb/landb_client.rb b/lib/landb/landb_client.rb
index a429f8c5ad612852c0f1a0f692fc448abdea7b7f..b319f9420a897f08c205676de972af9a16d0c0dd 100644
--- a/lib/landb/landb_client.rb
+++ b/lib/landb/landb_client.rb
@@ -93,7 +93,7 @@ class LandbClient
   def get_all_operations_and_arguments
     hash = {}
 
-    nok = Nokogiri::XML(open(@@config["wsdl"]))
+    nok = Nokogiri::XML(URI.open(@@config["wsdl"]))
     nok.xpath('wsdl:definitions/wsdl:binding/wsdl:operation').each do |action|
       action.children.each do |child_node|
         next unless child_node.element? && child_node.name == "input"