diff --git a/lib/menubar/init.lua b/lib/menubar/init.lua
index 75a66480e..5c4d3df1f 100644
--- a/lib/menubar/init.lua
+++ b/lib/menubar/init.lua
@@ -122,6 +122,7 @@ end
 --- Cut item list to return only current page.
 -- @tparam table all_items All items list.
 -- @tparam str query Search query.
+-- @tparam number scr Screen number
 -- @return table List of items for current page.
 local function get_current_page(all_items, query, scr)
     if not instance.prompt.width then
@@ -160,6 +161,7 @@ end
 
 --- Update the menubar according to the command entered by user.
 -- @tparam str query Search query.
+-- @tparam number scr Screen number
 local function menulist_update(query, scr)
     query = query or ""
     shownitems = {}
diff --git a/lib/menubar/utils.lua b/lib/menubar/utils.lua
index 8025fdb86..1279f1d97 100644
--- a/lib/menubar/utils.lua
+++ b/lib/menubar/utils.lua
@@ -256,6 +256,7 @@ end
 
 --- Compute textbox width.
 -- @tparam wibox.widget.textbox textbox Textbox instance.
+-- @tparam number s Screen number
 -- @treturn int Text width.
 function utils.compute_textbox_width(textbox, s)
     s = s or mouse.screen
@@ -265,6 +266,7 @@ end
 
 --- Compute text width.
 -- @tparam str text Text.
+-- @tparam number s Screen number
 -- @treturn int Text width.
 function utils.compute_text_width(text, s)
     return utils.compute_textbox_width(wibox.widget.textbox(awful_util.escape(text)), s)