diff --git a/bochs/cpu/msr.cc b/bochs/cpu/msr.cc
index 482831145..24b65b5fc 100644
--- a/bochs/cpu/msr.cc
+++ b/bochs/cpu/msr.cc
@@ -466,7 +466,7 @@ bool BX_CPP_AttrRegparmN(2) BX_CPU_C::handle_unknown_rdmsr(Bit32u index, Bit64u
       // failed to find the MSR, could #GP or ignore it silently
       BX_ERROR(("RDMSR: Unknown register %#x", index));
 
-      if (! BX_CPU_THIS_PTR ignore_bad_msrs || ! index)
+      if (! BX_CPU_THIS_PTR ignore_bad_msrs)
         return 0; // will result in #GP fault due to unknown MSR
     }
   }
@@ -1094,7 +1094,7 @@ bool BX_CPP_AttrRegparmN(2) BX_CPU_C::handle_unknown_wrmsr(Bit32u index, Bit64u
 #endif
     // failed to find the MSR, could #GP or ignore it silently
     BX_ERROR(("WRMSR: Unknown register %#x", index));
-    if (! BX_CPU_THIS_PTR ignore_bad_msrs || ! index)
+    if (! BX_CPU_THIS_PTR ignore_bad_msrs)
       return 0; // will result in #GP fault due to unknown MSR
   }