diff --git a/lib/rb/lib/thrift/server/tserver.rb b/lib/rb/lib/thrift/server/tserver.rb
index 33bf393..95e6297 100644
--- a/lib/rb/lib/thrift/server/tserver.rb
+++ b/lib/rb/lib/thrift/server/tserver.rb
@@ -27,8 +27,8 @@
 
 class TSimpleServer < TServer
 
-  def initialize(processor, serverTransport, transportFactory=nil, procotolFactory=nil)
-    super(processor, serverTransport, transportFactory, procotolFactory)
+  def initialize(processor, serverTransport, transportFactory=nil, protocolFactory=nil)
+    super(processor, serverTransport, transportFactory, protocolFactory)
   end
 
   def serve()