diff --git a/src/routes/(DefaultStyle)/post/[slug]/+page.svelte b/src/routes/(DefaultStyle)/post/[slug]/+page.svelte
index e814984..0e9a0e3 100644
--- a/src/routes/(DefaultStyle)/post/[slug]/+page.svelte
+++ b/src/routes/(DefaultStyle)/post/[slug]/+page.svelte
@@ -52,7 +52,7 @@
 	<meta property="og:description" content="{data.metadata.description}"/>
 	<meta property="og:type" content="article"/>
 	<meta property="og:locale" content="ja_JP"/>
-	{#if data.metadata.thumbnail && data.metadata.thumbnail.endsWith('.svg')}
+	{#if data.metadata.thumbnail && !data.metadata.thumbnail.endsWith('.svg')}
 		<meta property="og:image" content="{data.metadata.thumbnail}"/>
 	{:else}
 		<meta property="og:image" content="https://moris.day/apple-touch-icon.png"/>