diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index a6384d8..8f75c6f 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -32,8 +32,8 @@
 #define TRUE 1
 #endif
 
-extern struct address_space_operations cifs_addr_ops;
-extern struct address_space_operations cifs_addr_ops_smallbuf;
+extern const struct address_space_operations cifs_addr_ops;
+extern const struct address_space_operations cifs_addr_ops_smallbuf;
 
 /* Functions related to super block operations */
 extern struct super_operations cifs_super_ops;