diff --git a/src/locales/ja.json b/src/locales/ja.json
index 0028a047..e142119b 100644
--- a/src/locales/ja.json
+++ b/src/locales/ja.json
@@ -18,6 +18,7 @@
   "plan.menu.placement.surface.initial.setting": "配置面初期設定",
   "modal.placement.initial.setting.plan.drawing": "図面の作成方法",
   "modal.placement.initial.setting.plan.drawing.size.stuff": "寸法入力による物件作成",
+  "modal.placement.initial.setting.plan.drawing.size.info": "※数字は[半角]入力のみ可能です。",
   "modal.placement.initial.setting.size": "寸法入力方法",
   "modal.placement.initial.setting.size.info": "寸法入力方法案内",
   "modal.placement.initial.setting.size.roof": "伏図入力",
diff --git a/src/locales/ko.json b/src/locales/ko.json
index 4c051305..94b5e52e 100644
--- a/src/locales/ko.json
+++ b/src/locales/ko.json
@@ -18,6 +18,7 @@
   "plan.menu.placement.surface.initial.setting": "배치면 초기설정",
   "modal.placement.initial.setting.plan.drawing": "도면 작성방법",
   "modal.placement.initial.setting.plan.drawing.size.stuff": "치수 입력에 의한 물건 작성",
+  "modal.placement.initial.setting.plan.drawing.size.info": "※숫자는 [반각] 입력만 가능합니다.",
   "modal.placement.initial.setting.size": "치수 입력방법",
   "modal.placement.initial.setting.size.info": "치수 입력방법 안내",
   "modal.placement.initial.setting.size.roof": "복시도 입력",