diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
index d6e8acee99..244e61ad2e 100644
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -2515,6 +2515,12 @@ static DisasJumpType op_icm(DisasContext *s, DisasOps *o)
         ccm = ((1ull << len) - 1) << pos;
         break;
 
+    case 0:
+        /* Recognize access exceptions for the first byte.  */
+        tcg_gen_qemu_ld_i64(tmp, o->in2, get_mem_index(s), MO_UB);
+        gen_op_movi_cc(s, 0);
+        return DISAS_NEXT;
+
     default:
         /* This is going to be a sequence of loads and inserts.  */
         pos = base + 32 - 8;