diff --git a/packages/app-frontend/src/features/timeline/TimelineEventInspector.vue b/packages/app-frontend/src/features/timeline/TimelineEventInspector.vue
index af6f223ea..65319c6a9 100644
--- a/packages/app-frontend/src/features/timeline/TimelineEventInspector.vue
+++ b/packages/app-frontend/src/features/timeline/TimelineEventInspector.vue
@@ -121,7 +121,7 @@ export default defineComponent({
             duration: {
               _custom: {
                 value: inspectedEvent.group.duration,
-                display: `${inspectedEvent.group.duration} ms`
+                display: `${inspectedEvent.group.duration / 1000} ms`
               }
             }
           }