lib/nanoc/cli/cleaning_stream.rb in nanoc-4.1.0rc2 vs lib/nanoc/cli/cleaning_stream.rb in nanoc-4.1.0

@@ -138,10 +138,10 @@
     end
 
     protected
 
     def _nanoc_clean(s)
-      @stream_cleaners.reduce(s) { |a, e| e.clean(a) }
+      @stream_cleaners.reduce(s.to_s) { |a, e| e.clean(a) }
     end
 
     def _nanoc_swallow_broken_pipe_errors_while
       yield
     rescue Errno::EPIPE