diff --git a/locales/ko/translation.json b/locales/ko/translation.json
index 2eefbb4d..d57e0db2 100644
--- a/locales/ko/translation.json
+++ b/locales/ko/translation.json
@@ -134,5 +134,8 @@
     "title": "Report {user}",
     "detail": "Detail",
     "submit": "Submit"
+  },
+  "search": {
+    "placeholder": "Search timeline"
   }
 }