Hi, I usually use \ after abbreviations to avoid bad interword spaces. For example, Prof.\ ABC. However, when using this in footnotes, if there is a linebreak after the \, I get an error: ! Undefined control sequence. 1 >> \starttext 2 Someone\footnote{Prof.\ 3 ABC} 4 \stoptext 5 l.1 Prof.\ ABC \ctxcommand ...\directlua \zerocount {commands.#1} \handlenoteitself ...text \strc_notes_inject_text \endstrut \strc_constructi... \handlenoteinsert ... {\handlenoteitself {#1}{#2}} \egroup \the \everyafterno... \195>notation:note ...rentnote \currentnotenumber \fi \fi \endgroup \fi \fi ... \strc_notations_command_nop ...handler \endcsname \strc_constructions_finali... l.3 ABC} Minimal example (There should be a linebreak after \) \starttext Someone\footnote{Prof.\ ABC} \stoptext What's going on here? Aditya