diff --git a/reactos/ntoskrnl/ke/i386/cpu.c b/reactos/ntoskrnl/ke/i386/cpu.c
index 09568113b65..d89ce3eedd2 100644
--- a/reactos/ntoskrnl/ke/i386/cpu.c
+++ b/reactos/ntoskrnl/ke/i386/cpu.c
@@ -306,7 +306,7 @@ KiGetFeatureBits(VOID)
 
             /* Check if the CPU is too old to support SYSENTER */
             if ((Prcb->CpuType < 6) ||
-                ((Prcb->CpuType == 6) && (Prcb->CpuStep < 0x0303)))
+                ((Prcb->CpuType == 6) && (Prcb->CpuStep < 0x0300)))
             {
                 /* Disable it */
                 Reg[3] &= ~0x800;