diff --git a/lib/xmlrpc/parser.rb b/lib/xmlrpc/parser.rb
index c6d398b..c3ad50c 100644
--- a/lib/xmlrpc/parser.rb
+++ b/lib/xmlrpc/parser.rb
@@ -595,7 +595,7 @@ def parse(str)
 
     class LibXMLStreamParser < AbstractStreamParser
       def initialize
-        require 'libxml'
+        require 'libxml-ruby'
         @parser_class = LibXMLStreamListener
       end