diff --git a/visualc/VS2010/selftest.vcxproj b/visualc/VS2010/selftest.vcxproj
index e5e5080..8edf196 100644
--- a/visualc/VS2010/selftest.vcxproj
+++ b/visualc/VS2010/selftest.vcxproj
@@ -27,7 +27,7 @@
     </ProjectReference>
   </ItemGroup>
   <PropertyGroup Label="Globals">
-    <ProjectGuid>{54880004-9AA2-434D-A2F0-7F59D6F1536A}</ProjectGuid>
+    <ProjectGuid>{4DD758B5-6FC5-66C0-1D26-22C74C88FEF3}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>selftest</RootNamespace>
   </PropertyGroup>