diff --git a/src/chapter_6/lab-6/main.cpp b/src/chapter_6/lab-6/main.cpp
index 92dd847..92fed67 100644
--- a/src/chapter_6/lab-6/main.cpp
+++ b/src/chapter_6/lab-6/main.cpp
@@ -65,4 +65,6 @@ int main() {
   cout << "[SUCCESS] Output of back() is correct." << endl;
 
   cout << "All tests passed!" << endl;
+
+  delete testVec;
 }