1.1 --- a/src/Tools/isac/Interpret/Interpret.thy	Wed May 26 13:26:55 2021 +0200
     1.2 +++ b/src/Tools/isac/Interpret/Interpret.thy	Wed May 26 13:27:24 2021 +0200
     1.3 @@ -20,7 +20,7 @@
     1.4  
     1.5  ML \<open>
     1.6  local
     1.7 -  val thys_known_sofar = @{theory} :: Theory.ancestors_of @{theory}
     1.8 +  val thys_known_sofar = Theory.nodes_of @{theory}
     1.9    val isac_thys_known_sofar = take (
    1.10      find_index (curry Context.eq_thy ThyC.last_isabelle_thy) thys_known_sofar,
    1.11      thys_known_sofar)