diff --git a/doc/ref/api-foreign.texi b/doc/ref/api-foreign.texi
index 2f5375d28..bb93d6d1f 100644
--- a/doc/ref/api-foreign.texi
+++ b/doc/ref/api-foreign.texi
@@ -493,6 +493,8 @@ platform-dependent size:
 @defvrx {Scheme Variable} unsigned-int
 @defvrx {Scheme Variable} long
 @defvrx {Scheme Variable} unsigned-long
+@defvrx {Scheme Variable} short
+@defvrx {Scheme Variable} unsigned-short
 @defvrx {Scheme Variable} size_t
 @defvrx {Scheme Variable} ssize_t
 @defvrx {Scheme Variable} ptrdiff_t