diff --git a/README.md b/README.md
index e629571..d89aec0 100644
--- a/README.md
+++ b/README.md
@@ -244,6 +244,15 @@ file. The available modes are:
 - `flat` - No separator is used between segments, giving each segment a
   rectangular appearance (and also saves space).
 
+```
+{
+  "segments": [
+    ...
+  ],
+  "mode": "compatible"
+}
+```
+
 ### Themes
 
 The `powerline_shell/themes` directory stores themes for your prompt, which are