diff --git a/app/src/components/layout/CenterCanvas.svelte b/app/src/components/layout/CenterCanvas.svelte
index 7a05bb5..a7a1353 100644
--- a/app/src/components/layout/CenterCanvas.svelte
+++ b/app/src/components/layout/CenterCanvas.svelte
@@ -209,6 +209,7 @@
const _hasActivity = app.hasActivity
void app.gpxFilename // reactive dep: re-run when GPX changes
void app.units // reactive dep: the unit-system preference flips readouts
+ void app.compactUnits // reactive dep: the km/h↔kmh style flips readouts
void previewW // reactive dep: re-render when the base target size changes
void previewH // (export resolution, preview box size, or display pixel ratio)
diff --git a/app/src/components/overlays/Settings.svelte b/app/src/components/overlays/Settings.svelte
index 3483274..3b98ccc 100644
--- a/app/src/components/overlays/Settings.svelte
+++ b/app/src/components/overlays/Settings.svelte
@@ -73,6 +73,17 @@
]}
onchange={(v) => (app.units = v)}
/>
+
+ Speed unit style — how compound speed units are written.
+
+