diff --git a/suite/MC/X86/3DNow.s.cs b/suite/MC/X86/3DNow.s.cs
index 9e18d749..1fa3c0ad 100644
--- a/suite/MC/X86/3DNow.s.cs
+++ b/suite/MC/X86/3DNow.s.cs
@@ -1,3 +1,4 @@
+# CS_ARCH_X86, CS_MODE_32, CS_OPT_SYNTAX_ATT
 0x0f,0x0f,0xca,0xbf = pavgusb %mm2, %mm1
 0x67,0x0f,0x0f,0x5c,0x16,0x09,0xbf = pavgusb 9(%esi,%edx), %mm3
 0x0f,0x0f,0xca,0x1d = pf2id %mm2, %mm1