diff --git a/src/plugins/alias/alias-config.c b/src/plugins/alias/alias-config.c
index 139d11366..3a970c9f7 100644
--- a/src/plugins/alias/alias-config.c
+++ b/src/plugins/alias/alias-config.c
@@ -384,7 +384,7 @@ alias_config_update_cb (const void *pointer, void *data,
     if (version_read < 2)
     {
         /*
-         * changes in v2:
+         * changes in v2 (WeeChat 4.0.0):
          *   - aliases are in lower case by default
          *     (default aliases and those created by users are automatically
          *     converted to lower case)