diff --git a/fs/proc/root.c b/fs/proc/root.c
index 81c92e9..af15445 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -144,7 +144,7 @@
 /*
  * proc root can do almost nothing..
  */
-static struct inode_operations proc_root_inode_operations = {
+static const struct inode_operations proc_root_inode_operations = {
 	.lookup		= proc_root_lookup,
 	.getattr	= proc_root_getattr,
 };