diff --git a/docs/KNOWN_BUGS b/docs/KNOWN_BUGS
index 85885fcf9a38f68bed340dd52ce12e62f2a220d4..7a2357a63eed0ca9ad3d085efc76b22c2833f781 100644
--- a/docs/KNOWN_BUGS
+++ b/docs/KNOWN_BUGS
@@ -3,6 +3,10 @@ join in and help us correct one or more of these! Also be sure to check the
 changelog of the current development status, as one or more of these problems
 may have been fixed since this was written!
 
+42. Daniel Black filed bug report #1705802 where he accurately mentions that
+  several FTP-SSL test cases fail when we build libcurl with NSS for TLS/SSL:
+  http://curl.haxx.se/bug/view.cgi?id=1705802
+
 41. When doing an operation over FTP that requires the ACCT command (but not
   when logging in), the operation will fail since libcurl doesn't detect this
   and thus fails to issue the correct command: