diff --git a/docs/libcurl/opts/CURLOPT_CONNECT_ONLY.3 b/docs/libcurl/opts/CURLOPT_CONNECT_ONLY.3
index 7a602aa115..4da2be7bfb 100644
--- a/docs/libcurl/opts/CURLOPT_CONNECT_ONLY.3
+++ b/docs/libcurl/opts/CURLOPT_CONNECT_ONLY.3
@@ -40,7 +40,7 @@ transfers.
 .SH DEFAULT
 0
 .SH PROTOCOLS
-HTTP, SMTP and POP3
+HTTP, SMTP, POP3 and IMAP
 .SH EXAMPLE
 TODO
 .SH AVAILABILITY