diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 4c698a7..a199292 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -687,7 +687,7 @@
 MODULE_LICENSE("GPL");
 
 /* ioctl interface */
-static struct file_operations gdth_fops = {
+static const struct file_operations gdth_fops = {
     .ioctl   = gdth_ioctl,
     .open    = gdth_open,
     .release = gdth_close,