--- a/src/Pure/Admin/build_doc.scala	Thu Aug 04 17:08:35 2022 +0200
+++ b/src/Pure/Admin/build_doc.scala	Thu Aug 04 17:14:56 2022 +0200
@@ -54,9 +54,10 @@
             progress.expose_interrupt()
             progress.echo("Documentation " + quote(doc) + " ...")
 
-            using(store.open_database_context())(db_context =>
+            using(store.open_database_context()) { db_context =>
               Document_Build.build_documents(Document_Build.context(session, deps, db_context),
-                output_pdf = Some(Path.explode("~~/doc"))))
+                output_pdf = Some(Path.explode("~~/doc")))
+            }
             None
           }
           catch {