src/components/retweet_button/retweet_button.js

@@ -24,6 +24,9 @@ const RetweetButton = {
     }
   },
   computed: {
+    isOwn () {
+      return this.status.user.id === this.$store.state.users.currentUser.id
+    },
     mergedConfig () {
       return this.$store.getters.mergedConfig
     }

src/components/retweet_button/retweet_button.vue

@@ -1,7 +1,7 @@
 <template>
   <div class="RetweetButton">
     <button
-      v-if="visibility !== 'private' && visibility !== 'direct' && loggedIn"
+      v-if="(visibility !== 'private' || isOwn) && visibility !== 'direct' && loggedIn"
       class="button-unstyled interactive"
       :class="status.repeated && '-repeated'"
       :title="$t('tool_tip.repeat')"