diff --git a/sm3/sm3blocks_arm64.s b/sm3/sm3blocks_arm64.s
index 03743d3..4710db2 100644
--- a/sm3/sm3blocks_arm64.s
+++ b/sm3/sm3blocks_arm64.s
@@ -52,10 +52,10 @@
 	VLD1.P 16(srcPtr3), [V14.B16] \
 	VLD1.P 16(srcPtr4), [V15.B16] \	
 	TRANSPOSE_MATRIX(V12, V13, V14, V15, tmp1, tmp2, tmp3, tmp4); \
-	VREV32 V12, V12; \
-	VREV32 V13, V13; \
-	VREV32 V14, V14; \
-	VREV32 V15, V15; \
+	VREV32 V12.B16, V12.B16; \
+	VREV32 V13.B16, V13.B16; \
+	VREV32 V14.B16, V14.B16; \
+	VREV32 V15.B16, V15.B16; \
 	VST1.P [V12.B16, V13.B16, V14.B16, V15.B16], 64(wordPtr)
 
 #define LOAD_T(const, T) \