diff --git a/sm3/sm3blocks_s390x.s b/sm3/sm3blocks_s390x.s
index ee0b757..d6fbf49 100644
--- a/sm3/sm3blocks_s390x.s
+++ b/sm3/sm3blocks_s390x.s
@@ -68,7 +68,7 @@ GLOBL mask<>(SB), 8, $64
 	VL 0(srcPtr3)(srcPtrPtr), V18; \
 	VL 0(srcPtr4)(srcPtrPtr), V19; \
 	TRANSPOSE_MATRIX(V16, V17, V18, V19, M0, M1, M2, M3, TMP0, TMP1, TMP2, TMP3); \
-	VST V16, V19, (wordPtr); \
+	VSTM V16, V19, (wordPtr); \
 	LAY 16(srcPtrPtr), srcPtrPtr; \
 	ADD $64, wordPtr