diff --git a/.github/workflows/test_s390x.yaml b/.github/workflows/test_s390x.yaml
index cbee2b8..c22eade 100644
--- a/.github/workflows/test_s390x.yaml
+++ b/.github/workflows/test_s390x.yaml
@@ -14,7 +14,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.22.x]
+        go-version: [1.19.x]
         arch: [s390x]  
     runs-on: ubuntu-latest
     steps:
diff --git a/sm3/sm3blocks_s390x.s b/sm3/sm3blocks_s390x.s
index 400a4d7..51463a1 100644
--- a/sm3/sm3blocks_s390x.s
+++ b/sm3/sm3blocks_s390x.s
@@ -72,8 +72,10 @@ GLOBL mask<>(SB), 8, $64
 	LAY 16(srcPtrPtr), srcPtrPtr; \
 	ADD $64, wordPtr
 
+// VREPIF $const, T
 #define LOAD_T(const, T) \
-	VREPIF $32768, T
+	VLEIF $3, $const, T; \
+	VREPF $3, T, T
 
 #define ROUND_00_11(index, const, a, b, c, d, e, f, g, h) \
 	PROLD(a, TMP0, 12)               \