diff -r d9a54c4c9da9 -r 3cc73d00553c src/Pure/Tools/scala_project.scala
--- a/src/Pure/Tools/scala_project.scala	Sat Nov 28 20:18:29 2020 +0100
+++ b/src/Pure/Tools/scala_project.scala	Sat Nov 28 21:56:24 2020 +0100
@@ -161,7 +161,8 @@
   /* Isabelle tool wrapper */
 
   val isabelle_tool =
-    Isabelle_Tool("scala_project", "setup Gradle project for Isabelle/Scala/jEdit", args =>
+    Isabelle_Tool("scala_project", "setup Gradle project for Isabelle/Scala/jEdit",
+      Scala_Project.here, args =>
     {
       var symlinks = false