diff --git a/fs/char_dev.c b/fs/char_dev.c
index b53dffa..4e1b849 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -406,7 +406,7 @@
  * is contain the open that then fills in the correct operations
  * depending on the special file...
  */
-struct file_operations def_chr_fops = {
+const struct file_operations def_chr_fops = {
 	.open = chrdev_open,
 };