diff --git a/src/zabbix_server/lld/lld_worker.c b/src/zabbix_server/lld/lld_worker.c
index 1c2b0498a13..73669d10b95 100644
--- a/src/zabbix_server/lld/lld_worker.c
+++ b/src/zabbix_server/lld/lld_worker.c
@@ -249,6 +249,7 @@ ZBX_THREAD_ENTRY(lld_worker_thread, args)
 		}
 
 		zbx_ipc_message_clean(&message);
+		zbx_malloc_trim(time(NULL), SEC_PER_MIN, ZBX_MEBIBYTE);
 	}
 
 	zbx_setproctitle("%s #%d [terminated]", get_process_type_string(process_type), process_num);