diff --git a/CM2005 Object Oriented Programming/Topic 4/4.5.6/MerkelMain.h b/CM2005 Object Oriented Programming/Topic 4/4.5.6/MerkelMain.h
index 3657160..e3c5e28 100644
--- a/CM2005 Object Oriented Programming/Topic 4/4.5.6/MerkelMain.h	
+++ b/CM2005 Object Oriented Programming/Topic 4/4.5.6/MerkelMain.h	
@@ -22,5 +22,5 @@ class MerkelMain
         int getUserOption();
         void processUserOption(int userOption);
         std::string currentTime;
-        OrderBook orderBook{"20200317.csv"};
+        OrderBook orderBook{"test.csv"};
 }; 
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