diff --git a/sorting/merge_sort.cpp b/sorting/merge_sort.cpp
index 889695bee..ce87c8b5c 100644
--- a/sorting/merge_sort.cpp
+++ b/sorting/merge_sort.cpp
@@ -114,3 +114,4 @@ int main() {
     delete[] arr;
     return 0;
 }
+/** @} */