Index: /trunk/src/VBox/VMM/VMMR3/CPUM.cpp
===================================================================
--- /trunk/src/VBox/VMM/VMMR3/CPUM.cpp	(revision 42409)
+++ /trunk/src/VBox/VMM/VMMR3/CPUM.cpp	(revision 42410)
@@ -4362,5 +4362,5 @@
         pVCpu->cpum.s.fChanged &= ~CPUM_CHANGED_HIDDEN_SEL_REGS_INVALID;
     else
-        pVCpu->cpum.s.fChanged |= ~CPUM_CHANGED_HIDDEN_SEL_REGS_INVALID;
+        pVCpu->cpum.s.fChanged |= CPUM_CHANGED_HIDDEN_SEL_REGS_INVALID;
 
     pVCpu->cpum.s.fRemEntered = false;