diff --git a/library/lua/helpdb.lua b/library/lua/helpdb.lua
index 0c0bd9955..5e2b28ede 100644
--- a/library/lua/helpdb.lua
+++ b/library/lua/helpdb.lua
@@ -55,6 +55,7 @@ local BUILTINS = {
     'kill-lua',
     'load',
     'ls',
+    'man',
     'plug',
     'reload',
     'script',