diff --git a/src/keydb-diagnostic-tool.cpp b/src/keydb-diagnostic-tool.cpp
index 867b8a859..06e6d938a 100644
--- a/src/keydb-diagnostic-tool.cpp
+++ b/src/keydb-diagnostic-tool.cpp
@@ -1,6 +1,7 @@
 /* KeyDB diagnostic utility.
  *
- * Copyright (c) 2009-2012, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2009-2021, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2021, EQ Alpha Technology Ltd. <john at eqalpha dot com>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -963,4 +964,4 @@ int main(int argc, const char **argv) {
 
     return 0;
 }
- 
\ No newline at end of file
+