diff --git a/qemu/tcg/aarch64/tcg-target.c b/qemu/tcg/aarch64/tcg-target.c
index 6dff1756..ce8360f6 100644
--- a/qemu/tcg/aarch64/tcg-target.c
+++ b/qemu/tcg/aarch64/tcg-target.c
@@ -1241,7 +1241,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
 {
     /* 99% of the time, we can signal the use of extension registers
        by looking to see if the opcode handles 64-bit data.  */
-    TCGType ext = (tcg_op_defs[opc].flags & TCG_OPF_64BIT) != 0;
+    TCGType ext = (s->tcg_op_defs[opc].flags & TCG_OPF_64BIT) != 0;
 
     /* Hoist the loads of the most common arguments.  */
     TCGArg a0 = args[0];