diff --git a/src/arch/x86/X86ISA.py b/src/arch/x86/X86ISA.py
index 53a3cfc..2760b76 100644
--- a/src/arch/x86/X86ISA.py
+++ b/src/arch/x86/X86ISA.py
@@ -43,5 +43,5 @@
     cxx_header = "arch/x86/isa.hh"
 
     vendor_string = Param.String(
-        "M5 Simulator", "Vendor string for CPUID instruction"
+        "AuthenticAMD", "Vendor string for CPUID instruction"
     )