diff --git a/src/arch/x86/isa/microops/specop.isa b/src/arch/x86/isa/microops/specop.isa
index c6e172ef10..83fb97dec5 100644
--- a/src/arch/x86/isa/microops/specop.isa
+++ b/src/arch/x86/isa/microops/specop.isa
@@ -253,6 +253,7 @@ let {{
     microopClasses["fault"] = Fault
 
     class Halt(X86Microop):
+        className = "MicroHalt"
         def __init__(self):
             pass