diff --git a/preview.el.in b/preview.el.in
index eb40ae56..90b9b382 100644
--- a/preview.el.in
+++ b/preview.el.in
@@ -1166,7 +1166,7 @@ NONREL is not NIL."
     (setq preview-gs-init-string
           ;; Add commands for revised file access controls introduced
           ;; after gs 9.27 (bug#37719)
-          (concat (format "systemdict /.addcontrolpath known {%s} if\n"
+          (concat (format "systemdict /.addcontrolpath known {%s} if "
                           (mapconcat (lambda (f)
                                        (format "/PermitFileReading %s .addcontrolpath"
                                                (preview-ps-quote-filename f)))