Forgot to mark up a PEP reference
diff --git a/Doc/lib/liblinecache.tex b/Doc/lib/liblinecache.tex
index 98ab2a4..1477d3c 100644
--- a/Doc/lib/liblinecache.tex
+++ b/Doc/lib/liblinecache.tex
@@ -23,7 +23,7 @@
If a file named \var{filename} is not found, the function will look
for it in the module\indexiii{module}{search}{path} search path,
-\code{sys.path}, after first checking for a PEP 302 \code{__loader__}
+\code{sys.path}, after first checking for a \pep{302} \code{__loader__}
in \var{module_globals}, in case the module was imported from a zipfile
or other non-filesystem import source.