diff --git a/server/src/DatabaseHelper.cpp b/server/src/DatabaseHelper.cpp
index bfa3c1d..f7a6aab 100644
--- a/server/src/DatabaseHelper.cpp
+++ b/server/src/DatabaseHelper.cpp
@@ -238,7 +238,7 @@ inline sql::result load_permissions_v2(const std::shared_ptr<TSServer>& server,
 	auto server_id = server ? server->getServerId() : 0;
 	return command.query([&](int length, char** values, char** names){
 		permission::PermissionType key = permission::PermissionType::undefined;
-		permission::PermissionValue value = 0, granted = 0;
+		permission::PermissionValue value = permNotGranted, granted = permNotGranted;
 		bool negated = false, skipped = false;
 		std::shared_ptr<BasicChannel> channel;
 
@@ -384,6 +384,8 @@ void DatabaseHelper::saveClientPermissions(const std::shared_ptr<ts::server::TSS
 		std::string query = update.flag_delete ? DELETE_COMMAND : (update.flag_db ? UPDATE_COMMAND : INSERT_COMMAND);
 
 		auto permission_data = permission::resolvePermissionData(update.permission);
+		auto value = update.update_value == v2::delete_value ? permNotGranted : update.values.value;
+		auto grant = update.update_grant == v2::delete_value ? permNotGranted : update.values.grant;
 		logTrace(server_id, "[CHANNEL] Updating client permission for client {}: {}. New value: {}. New grant: {}. Query: {}",
 		         client_dbid,
 		         permission_data->name,
@@ -398,8 +400,8 @@ void DatabaseHelper::saveClientPermissions(const std::shared_ptr<ts::server::TSS
 		             variable{":type", permission::SQL_PERM_USER},
 
 		             variable{":permId", permission_data->name},
-		             variable{":value", update.values.value},
-		             variable{":grant", update.values.grant},
+		             variable{":value", value},
+		             variable{":grant", grant},
 		             variable{":flag_skip", update.flag_skip},
 		             variable{":flag_negate", update.flag_negate})
 				.executeLater().waitAndGetLater(LOG_SQL_CMD, {-1, "future error"});
@@ -449,11 +451,13 @@ void DatabaseHelper::saveGroupPermissions(const std::shared_ptr<ts::server::TSSe
 		std::string query = update.flag_delete ? DELETE_COMMAND : (update.flag_db ? UPDATE_COMMAND : INSERT_COMMAND);
 
 		auto permission_data = permission::resolvePermissionData(update.permission);
+		auto value = update.update_value == v2::delete_value ? permNotGranted : update.values.value;
+		auto grant = update.update_grant == v2::delete_value ? permNotGranted : update.values.grant;
 		logTrace(server_id, "[CHANNEL] Updating group permission for group {}: {}. New value: {}. New grant: {}. Query: {}",
 		         group_id,
 		         permission_data->name,
-		         update.values.value,
-		         update.values.grant,
+		         value,
+		         grant,
 		         query
 		);
 		sql::command(this->sql, query,
@@ -463,8 +467,8 @@ void DatabaseHelper::saveGroupPermissions(const std::shared_ptr<ts::server::TSSe
 		             variable{":type", permission::SQL_PERM_GROUP},
 
 		             variable{":permId", permission_data->name},
-		             variable{":value", update.values.value},
-		             variable{":grant", update.values.grant},
+		             variable{":value", value},
+		             variable{":grant", grant},
 		             variable{":flag_skip", update.flag_skip},
 		             variable{":flag_negate", update.flag_negate})
 				.executeLater().waitAndGetLater(LOG_SQL_CMD, {-1, "future error"});
@@ -593,12 +597,14 @@ void DatabaseHelper::saveChannelPermissions(const std::shared_ptr<ts::server::TS
 	for(auto& update : updates) {
 		std::string query = update.flag_delete ? DELETE_COMMAND : (update.flag_db ? UPDATE_COMMAND : INSERT_COMMAND);
 
+		auto value = update.update_value == v2::delete_value ? permNotGranted : update.values.value;
+		auto grant = update.update_grant == v2::delete_value ? permNotGranted : update.values.grant;
 		auto permission_data = permission::resolvePermissionData(update.permission);
 		logTrace(server_id, "[CHANNEL] Updating channel permission for channel {}: {}. New value: {}. New grant: {}. Query: {}",
 		         channel_id,
 		         permission_data->name,
-		         update.values.value,
-		         update.values.grant,
+		         value,
+		         grant,
 		         query
 		);
 		sql::command(this->sql, query,
@@ -608,8 +614,8 @@ void DatabaseHelper::saveChannelPermissions(const std::shared_ptr<ts::server::TS
 		             variable{":type", permission::SQL_PERM_CHANNEL},
 
 		             variable{":permId", permission_data->name},
-		             variable{":value", update.values.value},
-		             variable{":grant", update.values.grant},
+		             variable{":value", value},
+		             variable{":grant", grant},
 		             variable{":flag_skip", update.flag_skip},
 		             variable{":flag_negate", update.flag_negate})
 				.executeLater().waitAndGetLater(LOG_SQL_CMD, {-1, "future error"});
@@ -1180,7 +1186,7 @@ void DatabaseHelper::loadStartupPermissionCache() {
 	StartupPermissionArgument arg;
 	sql::command(this->sql, "SELECT `serverId`, `type`, `id`, `channelId`, `permId`, `value`, `grant`, `flag_skip`, `flag_negate` FROM permissions ORDER BY `serverId`").query([&](StartupPermissionArgument* arg, int length, char** values, char** names) {
 		auto key = permission::PermissionTypeEntry::unknown;
-		permission::PermissionValue value = 0, granted = 0;
+		permission::PermissionValue value = permNotGranted, granted = permNotGranted;
 		permission::PermissionSqlType type = SQL_PERM_GROUP;
 		bool negated = false, skipped = false;
 		ChannelId channel = 0;
diff --git a/shared b/shared
index 4a9d8f1..cb73d9d 160000
--- a/shared
+++ b/shared
@@ -1 +1 @@
-Subproject commit 4a9d8f132fe9ca3411e2e3c245922ad778c56aa0
+Subproject commit cb73d9df3258eaf59e4799c9e54d5f865e891734