diff --git a/pep-0397.txt b/pep-0397.txt
index c2173050f..7ca424a6b 100644
--- a/pep-0397.txt
+++ b/pep-0397.txt
@@ -295,7 +295,7 @@ Python Version Qualifiers
     In addition to environment variables, the same settings can be configured
     in the .INI file used by the launcher.  The section in the INI file is
     called ``[defaults]`` and the key name will be the same as the
-    environment variables without the leading ``PY\_`` prefix (and note that
+    environment variables without the leading ``PY_`` prefix (and note that
     the key names in the INI file are case insensitive.)  The contents of
     an environment variable will override things specified in the INI file.