diff --git a/doc/en/writing_plugins.rst b/doc/en/writing_plugins.rst
index 74533e273..03c4c78b0 100644
--- a/doc/en/writing_plugins.rst
+++ b/doc/en/writing_plugins.rst
@@ -293,7 +293,7 @@ can use like this::
                 pass
         """)
         result = testdir.runpytest("--verbose")
-        result.fnmatch_lines("""
+        result.stdout.fnmatch_lines("""
             test_example*
         """)