diff --git a/math/lcm_sum.cpp b/math/lcm_sum.cpp
index 2414f2d3a..12141afd1 100644
--- a/math/lcm_sum.cpp
+++ b/math/lcm_sum.cpp
@@ -83,7 +83,7 @@ static void test() {
 
 /**
 * main function
-*/
+ */
 int main() {
     test();
     return 0;