diff --git a/mine-sweeper.html b/mine-sweeper.html
index 1a6e650..3482f5e 100644
--- a/mine-sweeper.html
+++ b/mine-sweeper.html
@@ -113,7 +113,7 @@
   } else if (cellData === CODE.FLAG_MINE) { // 깃발 지뢰면
     data[rowIndex][cellIndex] = CODE.MINE; // 지뢰로
     target.className = '';
-    // target.textContent = 'X';
+    target.textContent = '';
   } else if (cellData === CODE.NORMAL) { // 닫힌 칸이면
     data[rowIndex][cellIndex] = CODE.QUESTION; // 물음표로
     target.className = 'question';