diff --git a/dna/dna.vcxproj b/dna/dna.vcxproj
index c6a3ba3..2f35a84 100644
--- a/dna/dna.vcxproj
+++ b/dna/dna.vcxproj
@@ -71,7 +71,7 @@
       <Profile>true</Profile>
     </Link>
     <PostBuildEvent>
-      <Command>xcopy "$(TargetDir)$(TargetFileName)" "$(SolutionDir)Builds\$(Configuration)\"</Command>
+      <Command>xcopy "$(TargetDir)$(TargetFileName)" "$(SolutionDir)Builds\$(Configuration)\" /Y</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -99,7 +99,7 @@
       <Profile>true</Profile>
     </Link>
     <PostBuildEvent>
-      <Command>xcopy "$(TargetDir)$(TargetFileName)" "$(SolutionDir)Builds\$(Configuration)\"</Command>
+      <Command>xcopy "$(TargetDir)$(TargetFileName)" "$(SolutionDir)Builds\$(Configuration)\" /Y</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
diff --git a/libIGraph/libIGraph.vcxproj b/libIGraph/libIGraph.vcxproj
index 13a6e45..b646d31 100644
--- a/libIGraph/libIGraph.vcxproj
+++ b/libIGraph/libIGraph.vcxproj
@@ -73,9 +73,9 @@
       <TargetMachine>MachineX86</TargetMachine>
     </Link>
     <PostBuildEvent>
-      <Command>xcopy "$(TargetDir)$(TargetFileName)" "$(SolutionDir)Builds\$(Configuration)\"
-xcopy "$(ProjectDir)freetype.dll" "$(SolutionDir)Builds\$(Configuration)\"
-xcopy "$(ProjectDir)Fonts\*.ttf" "$(SolutionDir)Builds\$(Configuration)\Fonts\"</Command>
+      <Command>xcopy "$(TargetDir)$(TargetFileName)" "$(SolutionDir)Builds\$(Configuration)\" /Y
+xcopy "$(ProjectDir)freetype.dll" "$(SolutionDir)Builds\$(Configuration)\" /Y
+xcopy "$(ProjectDir)Fonts\*.ttf" "$(SolutionDir)Builds\$(Configuration)\Fonts\" /Y</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -99,8 +99,9 @@
       <TargetMachine>MachineX86</TargetMachine>
     </Link>
     <PostBuildEvent>
-      <Command>xcopy "$(TargetDir)$(TargetFileName)" "$(SolutionDir)Builds\$(Configuration)\"
-xcopy "$(ProjectDir)freetype.dll" "$(SolutionDir)Builds\$(Configuration)\"</Command>
+      <Command>xcopy "$(TargetDir)$(TargetFileName)" "$(SolutionDir)Builds\$(Configuration)\" /Y
+xcopy "$(ProjectDir)freetype.dll" "$(SolutionDir)Builds\$(Configuration)\" /Y
+xcopy "$(ProjectDir)Fonts\*.ttf" "$(SolutionDir)Builds\$(Configuration)\Fonts\" /Y</Command>
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>