diff --git a/visualc/VS2010/cert_app.vcxproj b/visualc/VS2010/cert_app.vcxproj
index d88a78d..095ec00 100644
--- a/visualc/VS2010/cert_app.vcxproj
+++ b/visualc/VS2010/cert_app.vcxproj
@@ -27,7 +27,7 @@
     </ProjectReference>
   </ItemGroup>
   <PropertyGroup Label="Globals">
-    <ProjectGuid>{54880004-9AA2-434D-A2F0-7F59D6F1536A}</ProjectGuid>
+    <ProjectGuid>{E3172E20-4935-69C7-A398-C13EAA76818F}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>cert_app</RootNamespace>
   </PropertyGroup>