diff --git a/src/Tools/mkroot_DOF b/src/Tools/mkroot_DOF
index 8379184f..493c3d18 100755
--- a/src/Tools/mkroot_DOF
+++ b/src/Tools/mkroot_DOF
@@ -134,6 +134,7 @@ echo "    \"preamble.tex\"" >> "$DIR"/ROOT
 echo "    \"build\"" >> "$DIR"/ROOT
 sed -i -e "s/root.tex/isadof.cfg/" "$DIR"/ROOT
 sed -i -e "s/HOL/Isabelle_DOF/" "$DIR"/ROOT
+sed -i -e "s/\"output\"\]/\"output\", document_build = dof\]/" "$DIR"/ROOT
 rm -f "$DIR"/document/root.tex
   
 # Creating isadof.cfg