diff --git a/doc.zih.tu-dresden.de/util/grep-forbidden-patterns.sh b/doc.zih.tu-dresden.de/util/grep-forbidden-patterns.sh
index bb2f8350b09ad1fff6ac6df93cf02f594199e3bf..1e9d2104c471e2b0d644e7c8640468c527c89695 100755
--- a/doc.zih.tu-dresden.de/util/grep-forbidden-patterns.sh
+++ b/doc.zih.tu-dresden.de/util/grep-forbidden-patterns.sh
@@ -34,6 +34,9 @@ i	hpc[ -]\+da\>
 \"ATTACHURL\" was a keyword in the old wiki, don't use it.
 
 i	attachurl
+Do not use \"up-to-date\", because this should be an inherent property of this great documentation.
+
+i	\(\<up-to-date\>\|up to date\)
 Replace \"todo\" with real content.
 doc.zih.tu-dresden.de/docs/archive/system_triton.md
 i	\<todo\>	<!--.*todo.*-->