diff --git a/libol.vcxproj b/libol.vcxproj
index fd9b7d7f..7a68a3df 100644
--- a/libol.vcxproj
+++ b/libol.vcxproj
@@ -70,12 +70,17 @@
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="ol-win.c" />
-    <ClCompile Include="test\echo-server.c" />
+    <ClCompile Include="test\echo-demo.c" />
+    <ClCompile Include="test\echo.c" />
+    <ClCompile Include="test\test-ping-pong.c">
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="ngx-queue.h" />
     <ClInclude Include="ol-win.h" />
     <ClInclude Include="ol.h" />
+    <ClInclude Include="test\echo.h" />
   </ItemGroup>
   <ItemGroup>
     <None Include="iocp-links.html" />
diff --git a/test/echo-demo.c b/test/echo-demo.c
index 1fadb19f..025ceb85 100644
--- a/test/echo-demo.c
+++ b/test/echo-demo.c
@@ -2,9 +2,11 @@
 #include "echo.h"
 
 int main(int argc, char** argv) {
+  int r;
+
   ol_init();
 
-  int r = echo_start(8000);
+  r = echo_start(8000);
   if (r) {
     return r;
   }