diff --git a/src/CalcManager/CEngine/History.cpp b/src/CalcManager/CEngine/History.cpp
index 3520b974..95060069 100644
--- a/src/CalcManager/CEngine/History.cpp
+++ b/src/CalcManager/CEngine/History.cpp
@@ -401,9 +401,9 @@ int CHistoryCollector::AddCommand(_In_ const std::shared_ptr<IExpressionCommand>
         throw(CALC_E_OUTOFMEMORY);
     }
 
-    unsigned int nCommmands = 0;
-    m_spCommands->GetSize(&nCommmands);
-    return nCommmands - 1;
+    unsigned int nCommands = 0;
+    m_spCommands->GetSize(&nCommands);
+    return nCommands - 1;
 }
 
 //To Update the operands in the Expression according to the current Radix 
diff --git a/src/CalcManager/CalculatorManager.cpp b/src/CalcManager/CalculatorManager.cpp
index 74cef016..8f2d060d 100644
--- a/src/CalcManager/CalculatorManager.cpp
+++ b/src/CalcManager/CalculatorManager.cpp
@@ -429,7 +429,7 @@ namespace CalculationManager
                 *commandItr <= MEMORY_COMMAND_TO_UNSIGNED_CHAR(MemoryCommand::MemorizedNumberClearAll))
             {
                 //MemoryCommands(which have values above 255) are pushed on m_savedCommands upon casting to unsigned char.
-                //SerializeCommands uses m_savedCommands, which is then used in DeSerializeCommnds.
+                //SerializeCommands uses m_savedCommands, which is then used in DeSerializeCommands.
                 //Hence, a simple cast to MemoryCommand is not sufficient.
                 MemoryCommand memoryCommand = static_cast<MemoryCommand>(*commandItr + UCHAR_MAX + 1);
                 unsigned int indexOfMemory = 0;