diff --git a/src/web/app/desktop/tags/post-form.tag b/src/web/app/desktop/tags/post-form.tag
index b8cd8d3d77..c5cf094034 100644
--- a/src/web/app/desktop/tags/post-form.tag
+++ b/src/web/app/desktop/tags/post-form.tag
@@ -12,6 +12,7 @@
 	<mk-uploader ref="uploader"></mk-uploader>
 	<button ref="upload" title="PCからファイルを添付" onclick={ selectFile }><i class="fa fa-upload"></i></button>
 	<button ref="drive" title="ドライブからファイルを添付" onclick={ selectFileFromDrive }><i class="fa fa-cloud"></i></button>
+	<button class="cat" title="Insert The Cat" onclick={ cat }><i class="fa fa-smile-o"></i></button>
 	<p class="text-count { over: refs.text.value.length > 500 }">のこり{ 500 - refs.text.value.length }文字</p>
 	<button class={ wait: wait } ref="submit" disabled={ wait || (refs.text.value.length == 0 && files.length == 0) } onclick={ post }>{ wait ? '投稿中' : opts.reply ? '返信' : '投稿' }
 		<mk-ellipsis if={ wait }></mk-ellipsis>
@@ -237,6 +238,7 @@
 
 			[ref='upload']
 			[ref='drive']
+			.cat
 				display inline-block
 				cursor pointer
 				padding 0
@@ -425,5 +427,8 @@
 			.then ~>
 				@wait = false
 				@update!
+
+		@cat = ~>
+			@refs.text.value = @refs.text.value + '(=^・・^=)'
 	</script>
 </mk-post-form>