diff --git a/docs/notes/剑指 Offer 题解 - 10~19.md b/docs/notes/剑指 Offer 题解 - 10~19.md
index 2a32b5e3..95160e87 100644
--- a/docs/notes/剑指 Offer 题解 - 10~19.md	
+++ b/docs/notes/剑指 Offer 题解 - 10~19.md	
@@ -107,7 +107,6 @@ public class Solution {
 
     public Solution() {
         fib[1] = 1;
-        fib[2] = 2;
         for (int i = 2; i < fib.length; i++)
             fib[i] = fib[i - 1] + fib[i - 2];
     }