diff --git a/sm4/aesni_macros_ppc64x.s b/sm4/aesni_macros_ppc64x.s
index 1c94614..75f3a12 100644
--- a/sm4/aesni_macros_ppc64x.s
+++ b/sm4/aesni_macros_ppc64x.s
@@ -87,7 +87,7 @@
 	VAND NIBBLE_MASK, x, z;              \
 	VPERM L, L, z, y;                    \
 	VSRB x, V_FOUR, z;                   \
-	VPERMXOR H, z, y, x
+	VPERMXOR y, H, z, x
 
 // Affine Transform
 // parameters:
diff --git a/zuc/asm_ppc64x.s b/zuc/asm_ppc64x.s
index 8a10eb7..712a729 100644
--- a/zuc/asm_ppc64x.s
+++ b/zuc/asm_ppc64x.s
@@ -90,7 +90,7 @@ GLOBL rcon<>(SB), RODATA, $160
 	VAND NIBBLE_MASK, x, z;              \
 	VPERM L, L, z, y;                    \
 	VSRB x, V_FOUR, z;                   \
-	VPERMXOR H, z, y, x
+	VPERMXOR y, H, z, x
 
 #define SHLDL(a, b, n) \  // NO SHLDL in GOLANG now
 	SLW n, a, a           \