Index: tools/mb/docs/user_guide.md |
diff --git a/tools/mb/docs/user_guide.md b/tools/mb/docs/user_guide.md |
index 3fae2fe78f277926c46000ad0eefbae829c883b6..f14b11383882a60b122e24b09c875f7f4afaf652 100644 |
--- a/tools/mb/docs/user_guide.md |
+++ b/tools/mb/docs/user_guide.md |
@@ -107,9 +107,11 @@ a directory, then runs GYP or GN as appropriate: |
Either the `-c/--config` flag or the `-m/--master` and `-b/--builder` flags |
must be specified so that `mb` can figure out which config to use. |
-By default, MB will look in `//tools/mb/mb_config.pyl` to look up the config |
-information, but you can specify a custom config file using the |
-`-f/--config-file` flag. |
+By default, MB will look for a bot config file under `//ios/build/bots` (see |
+[design_spec.md](the design spec) for details of how the bot config files |
+work). If no matching one is found, will then look in |
+`//tools/mb/mb_config.pyl` to look up the config information, but you can |
+specify a custom config file using the `-f/--config-file` flag. |
The path must be a GN-style "source-absolute" path (as above). |