diff --git a/README.md b/README.md
index 73906eec..51fff4d9 100644
--- a/README.md
+++ b/README.md
@@ -70,7 +70,7 @@ Just run `topgrade`. It will run the following steps:
 * `--no-system` - Skip the system upgrade phase.
 
 ## Customization
-You can place a configuration file at `~/.config/topgrade.toml`. Here's an example:
+You can place a configuration file at `~/.config/topgrade.toml` (on macOS `~/Library/Preferences/topgrade.toml`).. Here's an example:
 
 
 ``` toml