diff --git a/docs/libcurl/opts/CURLOPT_USERPWD.3 b/docs/libcurl/opts/CURLOPT_USERPWD.3
index c5b1f743ed..0dec56bfea 100644
--- a/docs/libcurl/opts/CURLOPT_USERPWD.3
+++ b/docs/libcurl/opts/CURLOPT_USERPWD.3
@@ -88,3 +88,4 @@ Returns CURLE_OK on success or
 CURLE_OUT_OF_MEMORY if there was insufficient heap space.
 .SH "SEE ALSO"
 .BR CURLOPT_USERNAME "(3), " CURLOPT_PASSWORD "(3), "
+.BR CURLOPT_PROXYUSERPWD "(3), "