diff --git a/src/testdir/test64.ok b/src/testdir/test64.ok
index 382d6af..4ad5ed2 100644
--- a/src/testdir/test64.ok
+++ b/src/testdir/test64.ok
@@ -740,6 +740,8 @@
 OK 0 - \_[^a]\+
 OK 1 - \_[^a]\+
 OK 2 - \_[^a]\+
+OK 0 - [0-9a-zA-Z]\{8}-\([0-9a-zA-Z]\{4}-\)\{3}[0-9a-zA-Z]\{12}
+OK 1 - [0-9a-zA-Z]\{8}-\([0-9a-zA-Z]\{4}-\)\{3}[0-9a-zA-Z]\{12}
 192.168.0.1
 192.168.0.1
 192.168.0.1