diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index c3fc6ca..965d5b3 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1949,9 +1949,9 @@
 #endif
 
 /* dir.c */
-extern struct inode_operations reiserfs_dir_inode_operations;
-extern struct inode_operations reiserfs_symlink_inode_operations;
-extern struct inode_operations reiserfs_special_inode_operations;
+extern const struct inode_operations reiserfs_dir_inode_operations;
+extern const struct inode_operations reiserfs_symlink_inode_operations;
+extern const struct inode_operations reiserfs_special_inode_operations;
 extern const struct file_operations reiserfs_dir_operations;
 
 /* tail_conversion.c */
@@ -1963,7 +1963,7 @@
 void reiserfs_unmap_buffer(struct buffer_head *);
 
 /* file.c */
-extern struct inode_operations reiserfs_file_inode_operations;
+extern const struct inode_operations reiserfs_file_inode_operations;
 extern const struct file_operations reiserfs_file_operations;
 extern const struct address_space_operations reiserfs_address_space_operations;