diff --git a/qemu/tests/cfg/multi_disk.cfg b/qemu/tests/cfg/multi_disk.cfg
index 47654041f622dc0b8649d97f862706488c2c5c7c..fc373b65f119b89785c7949fb9e542b73ec2a860 100644
--- a/qemu/tests/cfg/multi_disk.cfg
+++ b/qemu/tests/cfg/multi_disk.cfg
@@ -20,6 +20,7 @@
             remove_image_stg = yes
             n_repeat = 10
         - max_disk:
+            cdroms = ""
             ide:
                 # 3 + boot disk = 4 disks
                 stg_image_num = 3