diff --git a/source/zxing/zxing/common/Array.h b/source/zxing/zxing/common/Array.h
index 45fc282..6f087eb 100644
--- a/source/zxing/zxing/common/Array.h
+++ b/source/zxing/zxing/common/Array.h
@@ -81,6 +81,9 @@ public:
   std::vector<T>& values() {
     return values_;
   }
+  void push_back(T value) {
+    values_.push_back(value);
+  }
 };
 
 template<typename T> class ArrayRef : public Counted {