Index: /trunk/src/VBox/VMM/VMMR0/GIMR0Hv.cpp
===================================================================
--- /trunk/src/VBox/VMM/VMMR0/GIMR0Hv.cpp	(revision 51953)
+++ /trunk/src/VBox/VMM/VMMR0/GIMR0Hv.cpp	(revision 51954)
@@ -99,5 +99,5 @@
 
     PCGIMHV          pcHv     = &pVM->gim.s.u.Hv;
-    PCGIMMMIO2REGION pcRegion = &pcHv->aMmio2Regions[GIM_HV_HYPERCALL_PAGE_REGION_IDX];
+    PCGIMMMIO2REGION pcRegion = &pcHv->aMmio2Regions[GIM_HV_REF_TSC_PAGE_REGION_IDX];
     PGIMHVREFTSC     pRefTsc  = (PGIMHVREFTSC)pcRegion->CTX_SUFF(pvPage);
     Assert(pRefTsc);