diff --git a/development/autotests/hello-world-in.txt b/development/autotests/hello-world-in.txt
index dc502e665b..019f293a1c 100644
--- a/development/autotests/hello-world-in.txt
+++ b/development/autotests/hello-world-in.txt
@@ -65,9 +65,16 @@
 #    will be escaped to create a suitable regex.
 #    The result will be applied on the lyx-log-file
 #
+# Cp: <pattern>
+#    It is an error if this pattern matches before the expected (either CP: or CR:)
+#    Expand pattern like in CP:
+#
 # CR: <regex pattern>
 #    Write a pattern to the control file. Pattern will be used directly (no conversion).
 #
+# Cr: <regex pattern>
+#    It is an error if this pattern matches before the expected (either CP: or CR:)
+#
 # CC:
 #    Close the control file. The file is also closed at 'TestEndWithKill' and 'TestEnd'
 #    implicitly.