Hi, (This is based on a question on tex.se: http://tex.stackexchange.com/q/94170/323) If a new head is defined based on an existing head, it still uses the label of the previous head. \definehead[whatever][chapter] \setuplabeltext[en][whatever=Whatever~] \setuplabeltext[en][chapter=Chapter~] \starttext \whatever{Animals} \chapter{Plants} \stoptext Uses the label Chapter for both heads. This is because the .tuc file contains label=chapter for both elements. utilitydata_structures_lists.collected={ { ["metadata"]=1, ["numberdata"]=3, ["references"]={ ["block"]="bodypart", ["internal"]=1, ["realpage"]=1, ["section"]=1, }, ["titledata"]={ ["label"]="chapter", ["title"]="Animals", }, }, { ["metadata"]=4, ["numberdata"]=6, ["references"]={ ["block"]="bodypart", ["internal"]=2, ["realpage"]=2, ["section"]=2, }, ["titledata"]={ ["label"]="chapter", ["title"]="Plants", }, }, } Adding \setuphead[whatever][label=whatever] does not change anything. This looks like a bug to me. Otherwise, what is the right way of changing the label of a section head? Aditya