diff --git a/tests/libtest/lib533.c b/tests/libtest/lib533.c
index dc48bb4625..75fe36065e 100644
--- a/tests/libtest/lib533.c
+++ b/tests/libtest/lib533.c
@@ -21,7 +21,7 @@
  * SPDX-License-Identifier: curl
  *
  ***************************************************************************/
-/* used for test case 533, 534 and 535 */
+/* used for test case 533, 534, 535 and 546 */
 
 #include "test.h"