diff --git a/source/repositories/member.ts b/source/repositories/member.ts
index 60f0e90..fe67b14 100644
--- a/source/repositories/member.ts
+++ b/source/repositories/member.ts
@@ -88,7 +88,7 @@ namespace _espe.repository.member
 				{
 					"database_implementation": _espe.helpers.database_implementation(),
 					"table_name": "member_groups",
-					"key_names": ["member_id","group"],
+					"key_names": ["member_id","group_name"],
 				}
 			);
 		}
@@ -135,7 +135,7 @@ namespace _espe.repository.member
 				object.groups
 				.map(
 					group => ({
-						"group": group,
+						"group_name": group,
 					})
 				)
 			)
@@ -155,8 +155,8 @@ namespace _espe.repository.member
 			"name_real_index": dispersal.core_row["name_real_index"],
 			"email_address_private": dispersal.core_row["email_address_private"],
 			"groups": lib_plankton.list.sorted<string>(
-				dispersal.group_rows.map(row => row["group"]),
-				(group1, group2) => ((group1 <= group2) ? 1 : 0)
+				dispersal.group_rows.map(row => row["group_name"]),
+				(group1, group2) => ((group1 <= group2) ? 0 : 1)
 			),
 			"registered": (dispersal.core_row["registered"] > 0),
 			"enabled": (dispersal.core_row["enabled"] > 0),
@@ -238,7 +238,7 @@ namespace _espe.repository.member
 			"core_row": core_row,
 			"group_rows": group_hits.map(
 				hit => ({
-					"group": hit.preview["group"]
+					"group_name": hit.preview["group_name"]
 				})
 			),
 		};
@@ -255,13 +255,15 @@ namespace _espe.repository.member
 	{
 		const dispersal : type_dispersal = encode(value);
 		
+		// core
 		const id : _espe.type.member_id = await get_core_store().create(dispersal.core_row);
 		
+		// groups
 		for await (const group_row of dispersal.group_rows) {
 			await get_group_chest().write(
 				[
 					id,
-					group_row["group"],
+					group_row["group_name"],
 				],
 				{
 					"_dummy": null,
@@ -293,14 +295,15 @@ namespace _espe.repository.member
 				"arguments": {"member_id": id}
 			}
 		);
+		lib_plankton.log.info("update_hit", hits);
 		for (const hit of hits) {
-			await get_group_chest().delete([hit.key]);
+			await get_group_chest().delete(hit.key);
 		}
 		for await (const group_row of dispersal.group_rows) {
 			await get_group_chest().write(
 				[
 					id,
-					group_row["group"],
+					group_row["group_name"],
 				],
 				{
 					"_dummy": null,
@@ -324,7 +327,7 @@ namespace _espe.repository.member
 			}
 		);
 		for (const hit of hits) {
-			await get_group_chest().delete([hit.key]);
+			await get_group_chest().delete(hit.key);
 		}
 		
 		// core