diff --git a/src/cmd/internal/obj/x86/asm6.go b/src/cmd/internal/obj/x86/asm6.go
index 8b98fe7c15..7482b28c74 100644
--- a/src/cmd/internal/obj/x86/asm6.go
+++ b/src/cmd/internal/obj/x86/asm6.go
@@ -889,7 +889,7 @@ var ymmxmm0f38 = []ytab{
 }
 
 var yextractps = []ytab{
-	{Yu2, Yxr, Yml, Zibr_m, 2},
+	{Zibr_m, 2, argList{Yu2, Yxr, Yml}},
 }
 
 /*