diff --git a/src/client/components/post-form.vue b/src/client/components/post-form.vue
index 969f8563a..82d28f30e 100644
--- a/src/client/components/post-form.vue
+++ b/src/client/components/post-form.vue
@@ -45,7 +45,7 @@
 			<button class="_button" @click="togglePoll" :class="{ active: poll }" v-tooltip="$ts.poll"><i class="fas fa-poll-h"></i></button>
 			<button class="_button" @click="useCw = !useCw" :class="{ active: useCw }" v-tooltip="$ts.useCw"><i class="fas fa-eye-slash"></i></button>
 			<button class="_button" @click="insertMention" v-tooltip="$ts.mention"><i class="fas fa-at"></i></button>
-			<button class="_button" @click="withHashtags = !withHashtags" v-tooltip="$ts.hashtags"><i class="fas fa-hashtag"></i></button>
+			<button class="_button" @click="withHashtags = !withHashtags" :class="{ active: withHashtags }" v-tooltip="$ts.hashtags"><i class="fas fa-hashtag"></i></button>
 			<button class="_button" @click="insertEmoji" v-tooltip="$ts.emoji"><i class="fas fa-laugh-squint"></i></button>
 			<button class="_button" @click="showActions" v-tooltip="$ts.plugin" v-if="postFormActions.length > 0"><i class="fas fa-plug"></i></button>
 		</footer>