diff --git a/src/session.c b/src/session.c
index 8ec5ca3b..9e7caf02 100644
--- a/src/session.c
+++ b/src/session.c
@@ -261,6 +261,7 @@ void ssh_free(ssh_session session) {
   SAFE_FREE(session->banner);
 
   SAFE_FREE(session->opts.bindaddr);
+  SAFE_FREE(session->opts.custombanner);
   SAFE_FREE(session->opts.username);
   SAFE_FREE(session->opts.host);
   SAFE_FREE(session->opts.sshdir);