diff --git a/tests/code_layout/sipifyheader.expected.sip b/tests/code_layout/sipifyheader.expected.sip
index 24de31a91dd..b8343e3eaac 100644
--- a/tests/code_layout/sipifyheader.expected.sip
+++ b/tests/code_layout/sipifyheader.expected.sip
@@ -170,7 +170,7 @@ Here's some comment mentioning another class QgsAutoAwesomemater.makeLessAwesome
 
     MyPointer *pointerReturnValue();
 %Docstring
-I return a pointer. If something bad happens, I return None.
+I return a pointer. If something bad happens, I return ``None``.
 
 :return: pointer to something cool
 %End