diff --git a/sm4/aesni_macros_ppc64x.s b/sm4/aesni_macros_ppc64x.s
index 75f3a12..3d7ab9b 100644
--- a/sm4/aesni_macros_ppc64x.s
+++ b/sm4/aesni_macros_ppc64x.s
@@ -87,7 +87,8 @@
 	VAND NIBBLE_MASK, x, z;              \
 	VPERM L, L, z, y;                    \
 	VSRB x, V_FOUR, z;                   \
-	VPERMXOR y, H, z, x
+	VPERM H, H, z, x;                    \
+	VXOR y, x, x
 
 // Affine Transform
 // parameters:
diff --git a/zuc/asm_ppc64x.s b/zuc/asm_ppc64x.s
index 712a729..d8e6999 100644
--- a/zuc/asm_ppc64x.s
+++ b/zuc/asm_ppc64x.s
@@ -90,7 +90,8 @@ GLOBL rcon<>(SB), RODATA, $160
 	VAND NIBBLE_MASK, x, z;              \
 	VPERM L, L, z, y;                    \
 	VSRB x, V_FOUR, z;                   \
-	VPERMXOR y, H, z, x
+	VPERM H, H, z, x;                    \
+	VXOR y, x, x
 
 #define SHLDL(a, b, n) \  // NO SHLDL in GOLANG now
 	SLW n, a, a           \