diff --git a/sm4/gcm_arm64.s b/sm4/gcm_arm64.s
index c4b5001..7ef9d40 100644
--- a/sm4/gcm_arm64.s
+++ b/sm4/gcm_arm64.s
@@ -733,13 +733,13 @@ encStartSingles:
 	// Prepare 4 counters
 	VMOV	CTR.B16, B0.B16
 	VADD	B0.S4, INC.S4, B1.S4
-	VREV32	B0.B16, B0.B16
+	//VREV32	B0.B16, B0.B16
 	VADD	B1.S4, INC.S4, B2.S4
-	VREV32	B1.B16, B1.B16
+	//VREV32	B1.B16, B1.B16
 	VADD	B2.S4, INC.S4, B3.S4
-	VREV32	B2.B16, B2.B16
+	//VREV32	B2.B16, B2.B16
 	VADD	B3.S4, INC.S4, CTR.S4
-	VREV32	B3.B16, B3.B16
+	//VREV32	B3.B16, B3.B16
 
 	// encryption first 4 blocks
 	PRE_TRANSPOSE_MATRIX(B0, B1, B2, B3)