diff --git a/dynamic_programming/abbreviation.cpp b/dynamic_programming/abbreviation.cpp
index a028bb8fd..17677e603 100644
--- a/dynamic_programming/abbreviation.cpp
+++ b/dynamic_programming/abbreviation.cpp
@@ -181,6 +181,6 @@ static void test() {
  * @returns 0 on exit
  */
 int main() {
-    test();
+    test();  // run self-implementation checks
     return 0;
 }