diff --git a/fs/romfs/super.c b/fs/romfs/super.c
index 4ab3c03..47f132d 100644
--- a/fs/romfs/super.c
+++ b/fs/romfs/super.c
@@ -284,7 +284,7 @@
 	.readdir	= romfs_readdir,
 };
 
-static struct inode_operations romfs_dir_inode_operations = {
+static const struct inode_operations romfs_dir_inode_operations = {
 	.lookup		= romfs_lookup,
 };