diff --git a/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py b/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py
index a9ad611b74..1c06506834 100644
--- a/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py
+++ b/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py
@@ -62,7 +62,7 @@ def macroop IRET_PROT {
     .adjust_env oszIn64Override
 
     # Check for a nested task. This isn't supported at the moment.
-    rflag t1, NT
+    rflag t1, 14; #NT bit
     panic "Task switching with iret is unimplemented!", flags=(nCEZF,)
 
     #t1 = temp_RIP