--- a/docs/1.5/ErrorReporting.rst
+++ b/docs/1.5/ErrorReporting.rst
@@ -291,8 +291,12 @@
             else:
                 status = 500
             error_msg = get_error_message(status)
-            if not traceback and cherrypy.request.show_tracebacks:
+            if not traceback and (config.get(
+                    'error_catcher.show_tracebacks', True)
+                    or cherrypy.request.show_tracebacks):
                 traceback = cherrypy._cperror.format_exc()
+            if not traceback:
+                traceback = "No traceback available (check the log file)."
             if not version:
                 version = cherrypy_version
             url = cherrypy.request.request_line