diff --git a/commit-graph.c b/commit-graph.c
index 1a6d26f864..2b26a9dad3 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -1559,9 +1559,13 @@ static int write_graph_chunk_base(struct hashfile *f,
 	return 0;
 }
 
+typedef int (*chunk_write_fn)(struct hashfile *f,
+			      struct write_commit_graph_context *ctx);
+
 struct chunk_info {
 	uint32_t id;
 	uint64_t size;
+	chunk_write_fn write_fn;
 };
 
 static int write_commit_graph_file(struct write_commit_graph_context *ctx)
@@ -1624,27 +1628,34 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
 
 	chunks[0].id = GRAPH_CHUNKID_OIDFANOUT;
 	chunks[0].size = GRAPH_FANOUT_SIZE;
+	chunks[0].write_fn = write_graph_chunk_fanout;
 	chunks[1].id = GRAPH_CHUNKID_OIDLOOKUP;
 	chunks[1].size = hashsz * ctx->commits.nr;
+	chunks[1].write_fn = write_graph_chunk_oids;
 	chunks[2].id = GRAPH_CHUNKID_DATA;
 	chunks[2].size = (hashsz + 16) * ctx->commits.nr;
+	chunks[2].write_fn = write_graph_chunk_data;
 	if (ctx->num_extra_edges) {
 		chunks[num_chunks].id = GRAPH_CHUNKID_EXTRAEDGES;
 		chunks[num_chunks].size = 4 * ctx->num_extra_edges;
+		chunks[num_chunks].write_fn = write_graph_chunk_extra_edges;
 		num_chunks++;
 	}
 	if (ctx->changed_paths) {
 		chunks[num_chunks].id = GRAPH_CHUNKID_BLOOMINDEXES;
 		chunks[num_chunks].size = sizeof(uint32_t) * ctx->commits.nr;
+		chunks[num_chunks].write_fn = write_graph_chunk_bloom_indexes;
 		num_chunks++;
 		chunks[num_chunks].id = GRAPH_CHUNKID_BLOOMDATA;
 		chunks[num_chunks].size = sizeof(uint32_t) * 3
 					  + ctx->total_bloom_filter_data_size;
+		chunks[num_chunks].write_fn = write_graph_chunk_bloom_data;
 		num_chunks++;
 	}
 	if (ctx->num_commit_graphs_after > 1) {
 		chunks[num_chunks].id = GRAPH_CHUNKID_BASE;
 		chunks[num_chunks].size = hashsz * (ctx->num_commit_graphs_after - 1);
+		chunks[num_chunks].write_fn = write_graph_chunk_base;
 		num_chunks++;
 	}
 
@@ -1680,19 +1691,12 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
 			progress_title.buf,
 			num_chunks * ctx->commits.nr);
 	}
-	write_graph_chunk_fanout(f, ctx);
-	write_graph_chunk_oids(f, ctx);
-	write_graph_chunk_data(f, ctx);
-	if (ctx->num_extra_edges)
-		write_graph_chunk_extra_edges(f, ctx);
-	if (ctx->changed_paths) {
-		write_graph_chunk_bloom_indexes(f, ctx);
-		write_graph_chunk_bloom_data(f, ctx);
-	}
-	if (ctx->num_commit_graphs_after > 1 &&
-	    write_graph_chunk_base(f, ctx)) {
-		return -1;
+
+	for (i = 0; i < num_chunks; i++) {
+		if (chunks[i].write_fn(f, ctx))
+			return -1;
 	}
+
 	stop_progress(&ctx->progress);
 	strbuf_release(&progress_title);