diff --git a/frontend/src/components/Timeline.vue b/frontend/src/components/Timeline.vue
index 78f8f98..caf2719 100644
--- a/frontend/src/components/Timeline.vue
+++ b/frontend/src/components/Timeline.vue
@@ -7,7 +7,7 @@
         <button @click="toggleMetric('altitude')"
                 :class="{ selected: showMetrics.altitude }"
                 :title="(showMetrics.altitude ? 'Hide' : 'Show') + ' altitude'">
-          <font-awesome-icon icon="ruler-vertical" />
+          <font-awesome-icon icon="mountain" />
         </button>
 
         <button @click="toggleMetric('distance')"