diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index 99c0bc3..327807b 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -169,7 +169,7 @@
 
 static struct dentry *openpromfs_lookup(struct inode *, struct dentry *, struct nameidata *);
 
-static struct inode_operations openprom_inode_operations = {
+static const struct inode_operations openprom_inode_operations = {
 	.lookup		= openpromfs_lookup,
 };