diff --git a/programmers/2 x n 타일링/solution.java b/programmers/2 x n 타일링/solution.java
index edb571e..d94ecef 100644
--- a/programmers/2 x n 타일링/solution.java	
+++ b/programmers/2 x n 타일링/solution.java	
@@ -5,9 +5,8 @@ class Solution {
         int[] ans = new int[n+1];
         for(int a = 0; a <= n; a++){
             int tmp = 0;
-            if(a == 0) tmp = 1;
-            if(a >= 1) tmp += ans[a-1];
-            if(a >= 2) tmp += ans[a-2];
+            if(a <= 1) tmp = 1;
+            if(a >= 2) tmp += ans[a-2]+ans[a-1];
             ans[a] = tmp%1000000007;
         }
         return ans[n];