diff --git a/Data-model.md b/Data-model.md
index 88a230c..1101588 100644
--- a/Data-model.md
+++ b/Data-model.md
@@ -262,7 +262,7 @@ Markers data is stored as an unordered array of objects (so element id is _not_
 * `lock`: `boolean` - `true` if marker is locked (not affected by regeneration). Optional
 
 ## Routes
-Routes data is stored as an ordered array of objects (so element id is the array index). Object structure:
+Routes data is stored as an unordered array of objects (so element id is _not_ the array index). Object structure:
 * `i`: `number` - route id. Please note the element with id `0` is a fully valid route, not a placeholder
 * `points`: `number[]` - array of control points in format `[x, y, cellId]`
 * `feature`: `number` - feature id of the route. Auto-generated routes cannot be place on multiple features