diff --git a/codes/c/chapter_greedy/max_capacity.c b/codes/c/chapter_greedy/max_capacity.c
index 023819cff..248089b2c 100644
--- a/codes/c/chapter_greedy/max_capacity.c
+++ b/codes/c/chapter_greedy/max_capacity.c
@@ -12,7 +12,7 @@ int myMin(int a, int b) {
 }
 /* 求最大值 */
 int myMax(int a, int b) {
-    return a < b ? a : b;
+    return a > b ? a : b;
 }
 
 /* 最大容量：贪心 */