diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c
index aafd01cb49..b3601446cd 100644
--- a/tcg/i386/tcg-target.inc.c
+++ b/tcg/i386/tcg-target.inc.c
@@ -358,6 +358,7 @@ static inline int tcg_target_const_match(tcg_target_long val, TCGType type,
 #define OPC_MOVBE_MyGy  (0xf1 | P_EXT38)
 #define OPC_MOVD_VyEy   (0x6e | P_EXT | P_DATA16)
 #define OPC_MOVD_EyVy   (0x7e | P_EXT | P_DATA16)
+#define OPC_MOVDDUP     (0x12 | P_EXT | P_SIMDF2)
 #define OPC_MOVDQA_VxWx (0x6f | P_EXT | P_DATA16)
 #define OPC_MOVDQA_WxVx (0x7f | P_EXT | P_DATA16)
 #define OPC_MOVDQU_VxWx (0x6f | P_EXT | P_SIMDF3)
@@ -921,7 +922,7 @@ static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
     } else {
         switch (vece) {
         case MO_64:
-            tcg_out_vex_modrm_offset(s, OPC_VBROADCASTSD, r, 0, base, offset);
+            tcg_out_vex_modrm_offset(s, OPC_MOVDDUP, r, 0, base, offset);
             break;
         case MO_32:
             tcg_out_vex_modrm_offset(s, OPC_VBROADCASTSS, r, 0, base, offset);
@@ -963,12 +964,12 @@ static void tcg_out_dupi_vec(TCGContext *s, TCGType type,
         } else if (have_avx2) {
             tcg_out_vex_modrm_pool(s, OPC_VPBROADCASTQ + vex_l, ret);
         } else {
-            tcg_out_vex_modrm_pool(s, OPC_VBROADCASTSD, ret);
+            tcg_out_vex_modrm_pool(s, OPC_MOVDDUP, ret);
         }
         new_pool_label(s, arg, R_386_PC32, s->code_ptr - 4, -4);
     } else {
         if (have_avx2) {
-            tcg_out_vex_modrm_pool(s, OPC_VBROADCASTSD + vex_l, ret);
+            tcg_out_vex_modrm_pool(s, OPC_VPBROADCASTW + vex_l, ret);
         } else {
             tcg_out_vex_modrm_pool(s, OPC_VBROADCASTSS, ret);
         }