diff --git a/src/core/sale.cpp b/src/core/sale.cpp
index 8407232..43ecabb 100644
--- a/src/core/sale.cpp
+++ b/src/core/sale.cpp
@@ -2,9 +2,14 @@
 
 #include <numeric>
 
+void Sale::addArticle(std::shared_ptr<Article> articlePtr)
+{
+    articles_.push_back(articlePtr);
+}
+
 int Sale::sumInCents()
 {
-    int test = std::accumulate(articles_.begin(), articles_.end(), 0,
-                               [](int a, Article* b) { return a + b->getPrice(); });
-    return test;
+    int sum = std::accumulate(articles_.begin(), articles_.end(), 0,
+                               [](int a, std::shared_ptr<Article> b) { return a + b->getPrice(); });
+    return sum;
 }
\ No newline at end of file
diff --git a/src/core/sale.h b/src/core/sale.h
index e4d016e..11253bd 100644
--- a/src/core/sale.h
+++ b/src/core/sale.h
@@ -13,9 +13,10 @@ class Sale : public Entity
 {
   public:
     int sumInCents();
+    void addArticle(std::shared_ptr<Article> articlePtr);
   private:
     boost::posix_time::ptime systemTime_{boost::posix_time::second_clock::local_time()};
-    std::vector<Article*> articles_{};
+    std::vector<std::shared_ptr<Article>> articles_{};
 };
 
 #endif
\ No newline at end of file