diff --git a/src/components/attachment/attachment.js b/src/components/attachment/attachment.js
index 23af693f..cb31020d 100644
--- a/src/components/attachment/attachment.js
+++ b/src/components/attachment/attachment.js
@@ -60,7 +60,8 @@ const Attachment = {
       return this.size === 'small'
     },
     fullwidth () {
-      return this.type === 'html' || this.type === 'audio'
+      if (this.size === 'hide') return false
+      return this.type === 'html' || this.type === 'audio' || this.type === 'unknown'
     },
     useModal () {
       const modalTypes = this.size === 'hide' ? ['image', 'video', 'audio']
diff --git a/src/components/attachment/attachment.vue b/src/components/attachment/attachment.vue
index a18bf186..be7377e9 100644
--- a/src/components/attachment/attachment.vue
+++ b/src/components/attachment/attachment.vue
@@ -1,6 +1,7 @@
 <template>
   <div
     v-if="usePlaceholder"
+    :class="{ 'fullwidth': fullwidth }"
     @click="openModal"
   >
     <a