1 files changed, 8 insertions, 3 deletions
diff --git a/lib/rack/body_proxy.rb b/lib/rack/body_proxy.rb
index 95a74626..b35167c8 100644
--- a/lib/rack/body_proxy.rb
+++ b/lib/rack/body_proxy.rb
@@ -4,9 +4,14 @@ module Rack
        @body, @block, @closed = body, block, false
      end
  
-    def respond_to?(*args)
-      return false if args.first.to_s =~ /^to_ary$/
-      super or @body.respond_to?(*args)
+    def respond_to?(method_name)
+      case method_name
+      when :to_ary
+        return false
+      when String
+        return false if /^to_ary$/ =~ method_name
+      end
+      super or @body.respond_to?(method_name)
      end
  
      def close