diff --git a/lib/onelogin/ruby-saml/idp_metadata_parser.rb b/lib/onelogin/ruby-saml/idp_metadata_parser.rb
index 8a2e4ca2..7e463626 100644
--- a/lib/onelogin/ruby-saml/idp_metadata_parser.rb
+++ b/lib/onelogin/ruby-saml/idp_metadata_parser.rb
@@ -3,6 +3,7 @@
 require "net/https"
 require "rexml/document"
 require "rexml/xpath"
+require "onelogin/ruby-saml/setting_error"
 
 # Only supports SAML 2.0
 module OneLogin
@@ -180,7 +181,7 @@ def parse_to_idp_metadata_array(idp_metadata, options = {})
 
         idpsso_descriptors = self.class.get_idps(@document, options[:entity_id])
         if !idpsso_descriptors.any?
-          raise ArgumentError.new("idp_metadata must contain an IDPSSODescriptor element")
+          raise SettingError.new("idp_metadata must contain an IDPSSODescriptor element")
         end
 
         idpsso_descriptors.map {|id| IdpMetadata.new(id, id.parent.attributes["entityID"])}
diff --git a/test/idp_metadata_parser_test.rb b/test/idp_metadata_parser_test.rb
index cb6d1f4d..5f254534 100644
--- a/test/idp_metadata_parser_test.rb
+++ b/test/idp_metadata_parser_test.rb
@@ -495,7 +495,7 @@ def initialize; end
     end
 
     it "raise due no IDPSSODescriptor element" do
-        assert_raises(ArgumentError) { @idp_metadata_parser.parse(@idp_metadata) }
+        assert_raises(OneLogin::RubySaml::SettingError) { @idp_metadata_parser.parse(@idp_metadata) }
     end
   end