diff --git a/builtin/repack.c b/builtin/repack.c
index 6dfcb3327e..af6de8d77a 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c

@@ -1260,6 +1266,7 @@ int cmd_repack(int argc,
 	size_t midx_pack_names_nr = 0;
 
 	/* variables to be filled by option parsing */
+	struct repack_config_ctx config_ctx;
 	int delete_redundant = 0;
 	const char *unpack_unreachable = NULL;
 	int keep_unreachable = 0;

@@ -1343,7 +1350,11 @@ int cmd_repack(int argc,
 
 	list_objects_filter_init(&po_args.filter_options);
 
-	repo_config(repo, repack_config, &cruft_po_args);
+	memset(&config_ctx, 0, sizeof(config_ctx));
+	config_ctx.po_args = &po_args;
+	config_ctx.cruft_po_args = &cruft_po_args;
+
+	repo_config(repo, repack_config, &config_ctx);