diff --git a/target/s390x/translate_vx.c.inc b/target/s390x/translate_vx.c.inc
index a9d51b1f4c..0afa46e463 100644
--- a/target/s390x/translate_vx.c.inc
+++ b/target/s390x/translate_vx.c.inc
@@ -1783,7 +1783,7 @@ static DisasJumpType op_vmsl(DisasContext *s, DisasOps *o)
 {
     TCGv_i64 l1, h1, l2, h2;
 
-    if (get_field(s, m4) != ES_64) {
+    if (get_field(s, m5) != ES_64) {
         gen_program_exception(s, PGM_SPECIFICATION);
         return DISAS_NORETURN;
     }