diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c
index 9438512..13faf8d 100644
--- a/drivers/char/viotape.c
+++ b/drivers/char/viotape.c
@@ -872,7 +872,7 @@
 	return ret;
 }
 
-struct file_operations viotap_fops = {
+const struct file_operations viotap_fops = {
 	owner: THIS_MODULE,
 	read: viotap_read,
 	write: viotap_write,