diff --git a/api/reservoir.lua b/api/reservoir.lua
index cfb30fc..2009767 100644
--- a/api/reservoir.lua
+++ b/api/reservoir.lua
@@ -53,11 +53,22 @@ local function give_item_to_player(pos, player, stack)
   end
 end
 
+local function make_inv_image(variant, liquidTexture)
+  local liquidMask = "^[mask:logistica_reservoir_liquid_mask.png"
+  local resize = "^[resize:83x83" -- this needs to match the size of the mask png
+  if variant == VAR_SMALL then
+    return liquidTexture..resize..liquidMask.."^logistica_reservoir_silverin_inv.png"
+  elseif variant == VAR_LARGE then
+    return liquidTexture..resize..liquidMask.."^logistica_reservoir_obsidian_inv.png"
+  else
+    return nil
+  end
+end
+
 ----------------------------------------------------------------
 -- callbacks
 ----------------------------------------------------------------
 
-
 local function after_place_node(pos, placer, itemstack, pointed_thing)
   local nodeMeta = minetest.get_meta(pos)
   local node = minetest.get_node(pos)
@@ -76,7 +87,6 @@ local function after_place_node(pos, placer, itemstack, pointed_thing)
   logistica.on_reservoir_change(pos)
 end
 
-
 local function preserve_metadata(pos, oldnode, oldmeta, drops)
   if not drops or not drops[1] then return end
   local nodeDef = minetest.registered_nodes[oldnode.name]
@@ -169,6 +179,7 @@ function logistica.register_reservoir(liquidName, liquidDesc, bucketItemName, li
     def.logistica.liquidName = lname
     def.groups.not_in_creative_inventory = 1
     def.light_source = optLight
+    def.inventory_image = make_inv_image(variantName, liquidTexture)
 
     minetest.register_node(nodeName, def)
     logistica.reservoirs[nodeName] = true
diff --git a/textures/logistica_reservoir_liquid_mask.png b/textures/logistica_reservoir_liquid_mask.png
new file mode 100644
index 0000000..1067d06
Binary files /dev/null and b/textures/logistica_reservoir_liquid_mask.png differ
diff --git a/textures/logistica_reservoir_obsidian_inv.png b/textures/logistica_reservoir_obsidian_inv.png
new file mode 100644
index 0000000..67fc491
Binary files /dev/null and b/textures/logistica_reservoir_obsidian_inv.png differ
diff --git a/textures/logistica_reservoir_silverin_inv.png b/textures/logistica_reservoir_silverin_inv.png
new file mode 100644
index 0000000..1505fd7
Binary files /dev/null and b/textures/logistica_reservoir_silverin_inv.png differ