diff --git a/src/app/[lng]/write/EditableTimer.tsx b/src/app/[lng]/write/EditableTimer.tsx
index 632566db..ca9e61a7 100644
--- a/src/app/[lng]/write/EditableTimer.tsx
+++ b/src/app/[lng]/write/EditableTimer.tsx
@@ -27,9 +27,9 @@ const EditableTimer = ({
     }, 1000);
 
     return () => clearInterval(interval);
-  }, []);
+  }, [createdAt]);
 
-  const isEditable = timeRemaining.minutes > 0 && timeRemaining.seconds > 0;
+  const isEditable = timeRemaining.minutes > 0 && timeRemaining.seconds >= 0;
 
   return (
     <p
@@ -45,7 +45,10 @@ const EditableTimer = ({
         <>
           {t('write.editableTimer')}{' '}
           <span className={'font-bold'}>
-            {`${timeRemaining.minutes}:${timeRemaining.seconds}`}
+            {`${timeRemaining.minutes}:${String(timeRemaining.seconds).padStart(
+              2,
+              '0',
+            )}`}
           </span>
         </>
       ) : (
diff --git a/src/app/[lng]/write/NoticeEditor.tsx b/src/app/[lng]/write/NoticeEditor.tsx
index 424c2065..2e33e542 100644
--- a/src/app/[lng]/write/NoticeEditor.tsx
+++ b/src/app/[lng]/write/NoticeEditor.tsx
@@ -323,7 +323,7 @@ const NoticeEditor = ({
       }
     }
 
-    const isAdditionalAttached = state.korean.additionalContent !== undefined;
+    const isAdditionalAttached = !!state.korean.additionalContent;
 
     if (isAdditionalAttached) {
       const additionalKoreanNotice = await createAdditionalNotice({