diff --git a/build/win32/vs10/cogl.props b/build/win32/vs10/cogl.props
index 19c817d59..d7136ca50 100644
--- a/build/win32/vs10/cogl.props
+++ b/build/win32/vs10/cogl.props
@@ -10,7 +10,7 @@
     <DebugLibBuildDefines>_DEBUG;$(LibBuildDefines);COGL_GL_DEBUG;COGL_OBJECT_DEBUG;COGL_HANDLE_DEBUG</DebugLibBuildDefines>
     <CoglBuildDefines>G_LOG_DOMAIN="Cogl";COGL_HAS_WIN32_SUPPORT;COGL_BUILD_EXP;COGL_GL_LIBNAME="";COGL_LOCALEDIR="/some/random/dir"</CoglBuildDefines>
     <CoglPangoBuildDefines>G_LOG_DOMAIN="Cogl-Pango"</CoglPangoBuildDefines>
-    <TestProgDef>COGL_COMPILATION;TESTS_DATADIR="../share/cogl-$(CoglApiVersion)/tests"</TestProgDef>
+    <TestProgDef>COGL_COMPILATION</TestProgDef>
     <CopyDir>$(GlibEtcInstallRoot)</CopyDir>
     <DefDir>$(SolutionDir)$(Configuration)\$(PlatformName)\obj\$(ProjectName)\</DefDir>
     <DoDefinesSDL>
@@ -322,4 +322,4 @@ copy ..\..\..\cogl\cogl-sdl.h $(CopyDir)\include\cogl-$(CoglApiVersion)\cogl
       <Value>$(CoglDllSuffix)</Value>
     </BuildMacro>
   </ItemGroup>
-</Project>
+</Project>
diff --git a/build/win32/vs9/cogl.vsprops b/build/win32/vs9/cogl.vsprops
index eeb564545..0c2773209 100644
--- a/build/win32/vs9/cogl.vsprops
+++ b/build/win32/vs9/cogl.vsprops
@@ -63,7 +63,7 @@
 	/>
 	<UserMacro
 		Name="TestProgDef"
-		Value="COGL_COMPILATION;TESTS_DATADIR=\&quot;../share/cogl-$(CoglApiVersion)/tests\&quot;"
+		Value="COGL_COMPILATION"
 	/>
 	<UserMacro
 		Name="DoDefinesSDL"