diff --git a/src/knownhosts.c b/src/knownhosts.c
index 23902a5f..546619aa 100644
--- a/src/knownhosts.c
+++ b/src/knownhosts.c
@@ -306,7 +306,8 @@ struct ssh_list *ssh_known_hosts_get_algorithms(ssh_session session)
     int list_error = 0;
     int rc;
 
-    if (session->opts.knownhosts == NULL) {
+    if (session->opts.knownhosts == NULL ||
+        session->opts.global_knownhosts == NULL) {
         if (ssh_options_apply(session) < 0) {
             ssh_set_error(session,
                           SSH_REQUEST_DENIED,