diff --git a/approved/obsidian_rtmmp/init.lua b/approved/obsidian_rtmmp/init.lua
index 17fd3fd..9942b99 100644
--- a/approved/obsidian_rtmmp/init.lua
+++ b/approved/obsidian_rtmmp/init.lua
@@ -6,12 +6,15 @@ minetest.register_node("obsidian_rtmmp:obsidian_block", {
     tile_images = {"obsidian_rtmmp_block.png"},
     inventory_image = minetest.inventorycube("obsidian_rtmmp_block.png"),
     is_ground_content = true,
-    material = {
-        diggablity = "normal",
-        weight = 50,
-        crackiness = 0,
-        crumbliness = 0,
-        cuttability = 0,
+    material = minetest.digprop_constanttime(12.0),
+    odrop = {
+        max_items = 1,
+        items = {
+            {
+                 items = {"obsidian_rtmmp:obsidian_block"},
+                 tools = {"default:pick_mese"},
+            }
+         }
     }
 })