Am Fri, 26 Feb 2016 11:27:01 +0000 schrieb Joseph Wright: > New prefixes registered as detailed below. which triggered me to look at the list. https://github.com/latex3/latex3/blob/master/l3kernel/l3prefixes.csv And imho in my case the order is wrong (the prefix is UF and the package citeall). Also my name is not written correctly. It also reminds me of a question: Is there a prefix pattern which will never be registered so that one can safely use it in local/private definitions? -- Ulrike Fischer http://www.troubleshooting-tex.de/