diff -r 56cd8111b7f7 -r 41300fa6a67c qmake/generators/win32/msvc_objectmodel.cpp
--- a/qmake/generators/win32/msvc_objectmodel.cpp	Tue Jan 26 12:42:25 2010 +0200
+++ b/qmake/generators/win32/msvc_objectmodel.cpp	Tue Feb 02 00:43:10 2010 +0200
@@ -1394,8 +1394,10 @@
         case 0x0005bb6: // X86
             TargetMachine = machineX86;
             break;
+        case 0x0005b94: // X64
+            TargetMachine = machineX64;
+            break;
         // so we put the others in AdditionalOptions...
-        case 0x0005b94: // X64
         case 0x0046063: // AM33
         case 0x000466d: // ARM
         case 0x0004795: // CEE