diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index b441ce3..a8c8b56 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -219,7 +219,7 @@
 /*
  * Our file operations table
  */
-static struct block_device_operations viodasd_fops = {
+static const struct block_device_operations viodasd_fops = {
 	.owner = THIS_MODULE,
 	.open = viodasd_open,
 	.release = viodasd_release,