diff --git a/reactos/ntoskrnl/ke/i386/v86vdm.c b/reactos/ntoskrnl/ke/i386/v86vdm.c
index 71014a3dfcb..0a9a1da5e95 100644
--- a/reactos/ntoskrnl/ke/i386/v86vdm.c
+++ b/reactos/ntoskrnl/ke/i386/v86vdm.c
@@ -86,8 +86,8 @@ Ke386CallBios(IN ULONG Int,
     KeSetSystemAffinityThread(1);
 
     /* Make sure there's space for two IOPMs, then copy & clear the current */
-    //ASSERT(((PKGDTENTRY)&KeGetPcr()->GDT[KGDT_TSS / 8])->LimitLow >=
-    //        (0x2000 + IOPM_OFFSET - 1));
+    ASSERT(((PKIPCR)KeGetPcr())->GDT[KGDT_TSS / 8].LimitLow >=
+            (0x2000 + IOPM_OFFSET - 1));
     RtlCopyMemory(Ki386IopmSaveArea, &Tss->IoMaps[0].IoMap, PAGE_SIZE * 2);
     RtlZeroMemory(&Tss->IoMaps[0].IoMap, PAGE_SIZE * 2);