diff --git a/cryptdll.vcxproj b/cryptdll.vcxproj
index b1efa601..a353fe07 100644
--- a/cryptdll.vcxproj
+++ b/cryptdll.vcxproj
@@ -171,7 +171,7 @@
     <CustomBuild Condition="'$(Platform)'=='x64' AND ('$(Configuration)'=='Debug' Or '$(Configuration)'=='Release')" Include="x64dll.asm">
       <Message>Building and assembling x64dll.asm</Message>
       <Command>ml64.exe /c /nologo /D_M_X64 /W3 /Zi /Fo"$(IntDir)x64dll.obj" "%(FullPath)"</Command>
-      <Outputs>$(IntDir)x64dll.obj</Outputs>
+      <Outputs>$(IntDir)x64dll.obj;%(Outputs)</Outputs>
     </CustomBuild>
   </ItemGroup>