diff --git a/examples/ptpython_config/config.py b/examples/ptpython_config/config.py
index 4efd5d9..fe8a9ae 100644
--- a/examples/ptpython_config/config.py
+++ b/examples/ptpython_config/config.py
@@ -1,4 +1,4 @@
-"""
+r"""
 Configuration example for ``ptpython``.
 
 Copy this file to $XDG_CONFIG_HOME/ptpython/config.py