diff --git a/newcoin.vcxproj b/newcoin.vcxproj
index 830dc5098..6e42918bb 100644
--- a/newcoin.vcxproj
+++ b/newcoin.vcxproj
@@ -150,6 +150,7 @@
     <ClCompile Include="src\TransactionMaster.cpp" />
     <ClCompile Include="src\UniqueNodeList.cpp" />
     <ClCompile Include="src\utils.cpp" />
+    <ClCompile Include="src\ValidationCollection.cpp" />
     <ClCompile Include="src\Wallet.cpp" />
   </ItemGroup>
   <ItemGroup>
diff --git a/newcoin.vcxproj.filters b/newcoin.vcxproj.filters
index 41af172d3..9b6d58391 100644
--- a/newcoin.vcxproj.filters
+++ b/newcoin.vcxproj.filters
@@ -237,6 +237,9 @@
     <ClCompile Include="src\CanonicalTXSet.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="src\ValidationCollection.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="KnownNodeList.h">