--- a/src/Pure/ML/ml_statistics.scala	Fri May 31 22:35:44 2024 +0200
+++ b/src/Pure/ML/ml_statistics.scala	Sat Jun 01 12:31:06 2024 +0200
@@ -63,7 +63,7 @@
     Bash.process(env_prefix + "\"$POLYML_EXE\" -q --use src/Pure/ML/ml_statistics.ML --eval " +
         Bash.string("ML_Statistics.monitor " + ML_Syntax.print_long(pid) + " " +
           ML_Syntax.print_double(delay.seconds)),
-        cwd = Path.ISABELLE_HOME.file)
+        cwd = Path.ISABELLE_HOME)
       .result(progress_stdout = progress_stdout, strict = false).check
   }