diff --git a/Doc/api/utilities.tex b/Doc/api/utilities.tex
index ab31f4e..a0f7a44 100644
--- a/Doc/api/utilities.tex
+++ b/Doc/api/utilities.tex
@@ -496,7 +496,7 @@
   \item[\samp{l} (integer) {[long int]}]
   Convert a Python integer to a C \ctype{long int}.
 
-  \item[\samp{L} (integer) {[LONG_LONG]}]
+  \item[\samp{L} (integer) {[PY_LONG_LONG]}]
   Convert a Python integer to a C \ctype{long long}.  This format is
   only available on platforms that support \ctype{long long} (or
   \ctype{_int64} on Windows).