diff --git a/src/CalcManager/CalculatorHistory.h b/src/CalcManager/CalculatorHistory.h
index 8116e9e..ea87f85 100644
--- a/src/CalcManager/CalculatorHistory.h
+++ b/src/CalcManager/CalculatorHistory.h
@@ -38,7 +38,7 @@ namespace CalculationManager
         void ClearHistory();
         unsigned int AddItem(_In_ std::shared_ptr<HISTORYITEM> const &spHistoryItem);
         bool RemoveItem(unsigned int uIdx);
-        const size_t MaxHistorySize() const { return m_maxHistorySize; }
+        size_t MaxHistorySize() const { return m_maxHistorySize; }
         ~CalculatorHistory(void);
 
     private: