diff --git a/src/CalculatorUnitTests/CalculatorUnitTests.vcxproj b/src/CalculatorUnitTests/CalculatorUnitTests.vcxproj
index 8dbdef12..371a686a 100644
--- a/src/CalculatorUnitTests/CalculatorUnitTests.vcxproj
+++ b/src/CalculatorUnitTests/CalculatorUnitTests.vcxproj
@@ -145,6 +145,7 @@
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       <WarningLevel>Level4</WarningLevel>
       <TreatWarningAsError>true</TreatWarningAsError>
+      <ControlFlowGuard>Guard</ControlFlowGuard>
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   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">
@@ -163,6 +164,7 @@
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       <WarningLevel>Level4</WarningLevel>
       <TreatWarningAsError>true</TreatWarningAsError>
+      <ControlFlowGuard>Guard</ControlFlowGuard>
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   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
@@ -181,6 +183,7 @@
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       <WarningLevel>Level4</WarningLevel>
       <TreatWarningAsError>true</TreatWarningAsError>
+      <ControlFlowGuard>Guard</ControlFlowGuard>
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   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -199,6 +202,7 @@
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       <WarningLevel>Level4</WarningLevel>
       <TreatWarningAsError>true</TreatWarningAsError>
+      <ControlFlowGuard>Guard</ControlFlowGuard>
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   <ItemGroup>