1 files changed, 2 insertions, 1 deletions
diff --git a/FileReader.h b/FileReader.h
index 90d5e32..1cf62ba 100644
--- a/FileReader.h
+++ b/FileReader.h
@@ -2,6 +2,7 @@
 
 #include <string>
 #include <map>
+#include <memory>
 
 #include "FileStrategy.h"
 
@@ -9,7 +10,7 @@ using FactoryMap = std::map<std::string, const FileStrategy *>;
 
 class FileReader {
 public:
-	static FileStrategy & open(const std::string url);
+	static std::unique_ptr<FileStrategy> open(const std::string url);
 
 private:
 	FileReader() = default;