diff --git a/internal.lua b/internal.lua
index 06967d2..885169f 100644
--- a/internal.lua
+++ b/internal.lua
@@ -99,17 +99,21 @@ function unified_inventory.get_formspec(player, page)
 		end
 	end
 
+	local j = 1 --Modif NALC (sys4 20/11/2018) 12 buttons max by row
 	for i, def in pairs(filtered_inv_buttons) do
 
 		if draw_lite_mode and i > 4 then
 			button_row = 1
 			button_col = 1
+		elseif not draw_lite_mode and j > 12 then
+			button_row = 1
+			j = 1
 		end
 
 		if def.type == "image" then
 			if (def.condition == nil or def.condition(player) == true) then
 				formspec[n] = "image_button["
-				formspec[n+1] = ( ui_peruser.main_button_x + 0.65 * (i - 1) - button_col * 0.65 * 4)
+				formspec[n+1] = ( ui_peruser.main_button_x + 0.65 * (j - 1) - button_col * 0.65 * 4) -- Modif NALC
 				formspec[n+2] = ","..(ui_peruser.main_button_y + button_row * 0.7)..";0.8,0.8;"
 				formspec[n+3] = F(def.image)..";"
 				formspec[n+4] = F(def.name)..";]"
@@ -118,13 +122,14 @@ function unified_inventory.get_formspec(player, page)
 				n = n+7
 			else
 				formspec[n] = "image["
-				formspec[n+1] = ( ui_peruser.main_button_x + 0.65 * (i - 1) - button_col * 0.65 * 4)
+				formspec[n+1] = ( ui_peruser.main_button_x + 0.65 * (j - 1) - button_col * 0.65 * 4) -- Modif NALC
 				formspec[n+2] = ","..(ui_peruser.main_button_y + button_row * 0.7)..";0.8,0.8;"
 				formspec[n+3] = F(def.image).."^[colorize:#808080:alpha]"
 				n = n+4
 
 			end
 		end
+		j = j + 1 -- Modif NALC
 	end
 
 	if fsdata.draw_inventory ~= false then