diff --git a/sm3/sm3block_arm64.go b/sm3/sm3block_arm64.go
index de6a808..75616c7 100644
--- a/sm3/sm3block_arm64.go
+++ b/sm3/sm3block_arm64.go
@@ -9,7 +9,7 @@ import (
 
 var useSM3NI = cpu.ARM64.HasSM3 && os.Getenv("DISABLE_SM3NI") != "1"
 
-var t = []uint32{
+var t = [...]uint32{
 	0x79cc4519,
 	0x9d8a7a87,
 }
@@ -18,13 +18,13 @@ var t = []uint32{
 func blockARM64(dig *digest, p []byte)
 
 //go:noescape
-func blockSM3NI(h []uint32, p []byte, t []uint32)
+func blockSM3NI(h []uint32, p []byte, t *uint32)
 
 func block(dig *digest, p []byte) {
 	if !useSM3NI {
 		blockARM64(dig, p)
 	} else {
 		h := dig.h[:]
-		blockSM3NI(h, p, t)
+		blockSM3NI(h, p, &t[0])
 	}
 }
diff --git a/sm3/sm3blockni_arm64.s b/sm3/sm3blockni_arm64.s
index 67a440b..b4d9ca1 100644
--- a/sm3/sm3blockni_arm64.s
+++ b/sm3/sm3blockni_arm64.s
@@ -3,12 +3,12 @@
 
 #include "textflag.h"
 
-// func blockSM3NI(h []uint32, p []byte, t []uint32)
+// func blockSM3NI(h []uint32, p []byte, t *uint32)
 TEXT ·blockSM3NI(SB), 0, $0
 	MOVD	h_base+0(FP), R0                           // Hash value first address
 	MOVD	p_base+24(FP), R1                          // message first address
 	MOVD	p_len+32(FP), R3                           // message length
-	MOVD	t_base+48(FP), R2                          // t constants first address
+	MOVD	t+48(FP), R2                               // t constants first address
 
 	VLD1 (R0), [V8.S4, V9.S4]                          // load h(a,b,c,d,e,f,g,h)
 	VREV64  V8.S4, V8.S4