diff --git a/valid-perfect-square/index.ixx b/valid-perfect-square/index.ixx
index 7685b959..9756f4f5 100644
--- a/valid-perfect-square/index.ixx
+++ b/valid-perfect-square/index.ixx
@@ -3,8 +3,7 @@ module;
 
 export module leetcode_test.valid_perfect_square.Solution;
 namespace leetcode_test::valid_perfect_square {
-export
-class Solution {
+export class Solution {
 
 public:
     static auto sqrt(int num)
@@ -28,5 +27,5 @@ public:
         return x * x == num;
     }
 };
-//export Solution;
+// export Solution;
 } // namespace leetcode_test::valid_perfect_square
\ No newline at end of file