diff --git a/fs/afs/xdr_fs.h b/fs/afs/xdr_fs.h
index 94f1f398eefa..cccc8e74f49b 100644
--- a/fs/afs/xdr_fs.h
+++ b/fs/afs/xdr_fs.h
@@ -82,7 +82,7 @@ union afs_xdr_dir_block {
 
 	struct {
 		struct afs_xdr_dir_hdr	hdr;
-		u8			alloc_ctrs[AFS_DIR_MAX_BLOCKS];
+		u8			alloc_ctrs[AFS_DIR_BLOCKS_WITH_CTR];
 		__be16			hashtable[AFS_DIR_HASHTBL_SIZE];
 	} meta;