diff --git a/src/events/2024/ntteast-tunnel.md b/src/events/2024/ntteast-tunnel.md
index 6111d2c..0ab1ecf 100644
--- a/src/events/2024/ntteast-tunnel.md
+++ b/src/events/2024/ntteast-tunnel.md
@@ -6,7 +6,7 @@
     "dtstart": "2024-09-25T14:30:00+09:00",
     "dtend": "2024-09-25T17:00:00+09:00",
     "location": "NTT東日本 都内某ビル",
-    "summary": "NTT東日本の洞道の見学会",
+    "summary": "NTT東日本のとう道の見学会",
     "ogp_type": "article"
 }
 ---