diff --git a/build/win32/vs10/cogl.props b/build/win32/vs10/cogl.props
index 1a6992f99..565940bad 100644
--- a/build/win32/vs10/cogl.props
+++ b/build/win32/vs10/cogl.props
@@ -192,7 +192,7 @@ copy ..\..\..\cogl\cogl2-compatibility.h $(CopyDir)\include\cogl-$(CoglApiVersio
     <GenerateCoglDef>
          echo EXPORTS &gt; ..\..\..\cogl\cogl.def
 
-         cl -EP -DCOGL_ENABLE_EXPERIMENTAL_API -D_COGL_SUPPORTS_GTYPE_INTEGRATION -DCOGL_HAS_WIN32_SUPPORT -DCOGL_HAS_GLIB_SUPPORT ..\..\..\cogl\cogl.symbols &gt;&gt; ..\..\..\cogl\cogl.def
+         cl -EP -D_COGL_SUPPORTS_GTYPE_INTEGRATION -DCOGL_HAS_WIN32_SUPPORT -DCOGL_HAS_GLIB_SUPPORT ..\..\..\cogl\cogl.symbols &gt;&gt; ..\..\..\cogl\cogl.def
 
      </GenerateCoglDef>
     <GenerateCoglPangoDef>
diff --git a/build/win32/vs9/cogl.vsprops b/build/win32/vs9/cogl.vsprops
index a48960445..6d4f3aff2 100644
--- a/build/win32/vs9/cogl.vsprops
+++ b/build/win32/vs9/cogl.vsprops
@@ -178,7 +178,7 @@ copy ..\..\..\tests\data\valgrind.suppressions $(OutDir)\share\cogl-$(CoglApiVer
 		Name="GenerateCoglDef"
 		Value="
 		       echo EXPORTS &gt; ..\..\..\cogl\cogl.def&#x0D;&#x0A;
-		       cl -EP -DCOGL_ENABLE_EXPERIMENTAL_API -D_COGL_SUPPORTS_GTYPE_INTEGRATION -DCOGL_HAS_WIN32_SUPPORT -DCOGL_HAS_GLIB_SUPPORT ..\..\..\cogl\cogl.symbols &gt;&gt; ..\..\..\cogl\cogl.def&#x0D;&#x0A;
+		       cl -EP -D_COGL_SUPPORTS_GTYPE_INTEGRATION -DCOGL_HAS_WIN32_SUPPORT -DCOGL_HAS_GLIB_SUPPORT ..\..\..\cogl\cogl.symbols &gt;&gt; ..\..\..\cogl\cogl.def&#x0D;&#x0A;
 			  "
 	/>
 	<UserMacro