diff --git a/pc-bios/s390-ccw/virtio.c b/pc-bios/s390-ccw/virtio.c
index 817e7f56ea..cdb66f459e 100644
--- a/pc-bios/s390-ccw/virtio.c
+++ b/pc-bios/s390-ccw/virtio.c
@@ -14,7 +14,7 @@
 #include "virtio-scsi.h"
 #include "bswap.h"
 
-#define VRING_WAIT_REPLY_TIMEOUT 3
+#define VRING_WAIT_REPLY_TIMEOUT 30
 
 static VRing block[VIRTIO_MAX_VQS];
 static char ring_area[VIRTIO_RING_SIZE * VIRTIO_MAX_VQS]