diff --git a/src/components/ui/DateDiffLabel/constant.ts b/src/components/ui/DateDiffLabel/constant.ts
index 4edc828..5cc02ba 100644
--- a/src/components/ui/DateDiffLabel/constant.ts
+++ b/src/components/ui/DateDiffLabel/constant.ts
@@ -1,22 +1,10 @@
 export const DATE_DIFF_LABEL = {
-  second: {
-    past: '秒前',
-  },
-  minute: {
-    past: '分前',
-  },
-  hour: {
-    past: '時間前',
-  },
-  day: {
-    past: '日前',
-  },
-  week: {
-    past: '週間前',
-  },
-  month: {
-    past: 'ヶ月前',
-  },
+  second: '秒前',
+  minute: '分前',
+  hour: '時間前',
+  day: '日前',
+  week: '週間前',
+  month: 'ヶ月前',
 } as const;
 
 export const MINUTE = 60;
diff --git a/src/components/ui/DateDiffLabel/logic.ts b/src/components/ui/DateDiffLabel/logic.ts
index 2af9ce6..e90664f 100644
--- a/src/components/ui/DateDiffLabel/logic.ts
+++ b/src/components/ui/DateDiffLabel/logic.ts
@@ -18,26 +18,26 @@ export const DateToDiffLabel = (
   if(diffInSeconds <= MONTH * 3) {
     if (diffInSeconds < MINUTE)
         return `${diffInSeconds}${
-            DATE_DIFF_LABEL['second']['past']
+            DATE_DIFF_LABEL['second']
         }`;
     if (diffInSeconds < HOUR)
         return `${Math.floor(diffInSeconds / MINUTE)}${
-            DATE_DIFF_LABEL['minute']['past']
+            DATE_DIFF_LABEL['minute']
         }`;
     if (diffInSeconds < DAY)
         return `${Math.floor(diffInSeconds / HOUR)}${
-            DATE_DIFF_LABEL['hour']['past']
+            DATE_DIFF_LABEL['hour']
         }`;
     if (diffInSeconds < WEEK)
         return `${Math.floor(diffInSeconds / DAY)}${
-            DATE_DIFF_LABEL['day']['past']
+            DATE_DIFF_LABEL['day']
         }`;
     if (diffInSeconds < MONTH) 
         return `${Math.floor(diffInSeconds / WEEK)}${
-            DATE_DIFF_LABEL['week']['past']
+            DATE_DIFF_LABEL['week']
         }`;
     return `${Math.floor(diffInSeconds / MONTH)}${
-      DATE_DIFF_LABEL['month']['past']
+      DATE_DIFF_LABEL['month']
     }`;
   }