diff --git a/general/genlib/libssh2.xml b/general/genlib/libssh2.xml
index 5366ceaaf1..e34dcc1c2b 100644
--- a/general/genlib/libssh2.xml
+++ b/general/genlib/libssh2.xml
@@ -108,7 +108,9 @@ make</userinput></screen>
 
     <para>
       To test the results, issue: <command>make check</command>.
-      <!--One test, using gnupg, may fail for unknown reasons.-->
+      <!-- https://github.com/libssh2/libssh2/issues/630 -->
+      One test named <filename>ssh2.sh</filename> is known to fail with
+      recent OpenSSH releases.
     </para>
 
     <para>