diff --git a/doc/mod_api.txt b/doc/mod_api.txt
index 13780b3..c0be129 100644
--- a/doc/mod_api.txt
+++ b/doc/mod_api.txt
@@ -24,10 +24,12 @@ Register a new page: The callback inside this function is called on user input.
 			return {
 				formspec = "button[2,2;2,1;mybutton;Press me]",
 				-- ^ Final form of the formspec to display
-				draw_inventory = false,
+				draw_inventory = false,   -- default `true`
 				-- ^ Optional. Hides the player's `main` inventory list
-				draw_item_list = false,
+				draw_item_list = false,   -- default `true`
 				-- ^ Optional. Hides the item list on the right side
+				formspec_prepend = false, -- default `false`
+				-- ^ Optional. When `false`: Disables the formspec prepend
 			}
 		end,
 	})
diff --git a/internal.lua b/internal.lua
index 3fad275..aa7ce66 100644
--- a/internal.lua
+++ b/internal.lua
@@ -58,15 +58,20 @@ function unified_inventory.get_formspec(player, page)
 	unified_inventory.current_page[player_name] = page
 	local pagedef = unified_inventory.pages[page]
 
+	if not pagedef then
+		return "" -- Invalid page name
+	end
+
 	local formspec = {
 		"size[14,10]",
+		pagedef.formspec_prepend and "" or "no_prepend[]",
 		"background[-0.19,-0.25;14.4,10.75;ui_form_bg.png]" -- Background
 	}
-	local n = 3
+	local n = 4
 
 	if draw_lite_mode then
 		formspec[1] = "size[11,7.7]"
-		formspec[2] = "background[-0.19,-0.2;11.4,8.4;ui_form_bg.png]"
+		formspec[3] = "background[-0.19,-0.2;11.4,8.4;ui_form_bg.png]"
 	end
 
 	if unified_inventory.is_creative(player_name)
@@ -75,11 +80,6 @@ function unified_inventory.get_formspec(player, page)
 		n = n+1
 	end
 
-	-- Current page
-	if not unified_inventory.pages[page] then
-		return "" -- Invalid page name
-	end
-
 	local perplayer_formspec = unified_inventory.get_per_player_formspec(player_name)
 	local fsdata = pagedef.get_formspec(player, perplayer_formspec)