diff --git a/convert/main.c b/convert/main.c
index c197d07a..c2ef7324 100644
--- a/convert/main.c
+++ b/convert/main.c
@@ -943,8 +943,7 @@ static int make_convert_data_block_groups(struct btrfs_trans_handle *trans,
 			len = min(max_chunk_size,
 				  cache->start + cache->size - cur);
 			ret = btrfs_alloc_data_chunk(trans, fs_info,
-					&cur_backup, len,
-					BTRFS_BLOCK_GROUP_DATA, 1);
+					&cur_backup, len, 1);
 			if (ret < 0)
 				break;
 			ret = btrfs_make_block_group(trans, fs_info, 0,
diff --git a/volumes.c b/volumes.c
index 1d088d93..87315a88 100644
--- a/volumes.c
+++ b/volumes.c
@@ -1245,7 +1245,7 @@ out_chunk:
  */
 int btrfs_alloc_data_chunk(struct btrfs_trans_handle *trans,
 			   struct btrfs_fs_info *info, u64 *start,
-			   u64 num_bytes, u64 type, int convert)
+			   u64 num_bytes, int convert)
 {
 	u64 dev_offset;
 	struct btrfs_root *extent_root = info->extent_root;
@@ -1328,7 +1328,7 @@ int btrfs_alloc_data_chunk(struct btrfs_trans_handle *trans,
 	btrfs_set_stack_chunk_length(chunk, num_bytes);
 	btrfs_set_stack_chunk_owner(chunk, extent_root->root_key.objectid);
 	btrfs_set_stack_chunk_stripe_len(chunk, stripe_len);
-	btrfs_set_stack_chunk_type(chunk, type);
+	btrfs_set_stack_chunk_type(chunk, BTRFS_BLOCK_GROUP_DATA);
 	btrfs_set_stack_chunk_num_stripes(chunk, num_stripes);
 	btrfs_set_stack_chunk_io_align(chunk, stripe_len);
 	btrfs_set_stack_chunk_io_width(chunk, stripe_len);
@@ -1338,7 +1338,7 @@ int btrfs_alloc_data_chunk(struct btrfs_trans_handle *trans,
 	map->stripe_len = stripe_len;
 	map->io_align = stripe_len;
 	map->io_width = stripe_len;
-	map->type = type;
+	map->type = BTRFS_BLOCK_GROUP_DATA;
 	map->num_stripes = num_stripes;
 	map->sub_stripes = sub_stripes;
 
diff --git a/volumes.h b/volumes.h
index 586588c8..83ba827e 100644
--- a/volumes.h
+++ b/volumes.h
@@ -272,7 +272,7 @@ int btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
 		      u64 *num_bytes, u64 type);
 int btrfs_alloc_data_chunk(struct btrfs_trans_handle *trans,
 			   struct btrfs_fs_info *fs_info, u64 *start,
-			   u64 num_bytes, u64 type, int convert);
+			   u64 num_bytes, int convert);
 int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
 		       int flags);
 int btrfs_close_devices(struct btrfs_fs_devices *fs_devices);