diff --git a/lib/debug/tracer.rb b/lib/debug/tracer.rb
index fbbbac108..49c6923c1 100644
--- a/lib/debug/tracer.rb
+++ b/lib/debug/tracer.rb
@@ -89,11 +89,6 @@ def out tp, msg = nil, depth = caller.size - 1
       end
     end
 
-    def puts msg
-      @output.puts msg
-      @output.flush
-    end
-
     def minfo tp
       return "block{}" if tp.event == :b_call