diff --git a/test/yarp/parse_test.rb b/test/yarp/parse_test.rb
index 8934faf5c53817..ba8639c3bb7df3 100644
--- a/test/yarp/parse_test.rb
+++ b/test/yarp/parse_test.rb
@@ -21,6 +21,7 @@ def test_empty_string
   # and the line breaks based on the length of the path.
   def normalize_printed(printed)
     printed
+      .b
       .gsub(
         /SourceFileNode \s*
           \(\s* (\d+\.\.\.\d+) \s*\) \s*