diff --git a/API.md b/API.md
index 086eb321..aabdf501 100644
--- a/API.md
+++ b/API.md
@@ -51,6 +51,7 @@ These groups are used mostly for informational purposes
 * `compass`: Compass (rating doesn't matter)
 * `rail=1`: Rail
 * `music_record`: Music Disc (rating is track ID)
+* `tnt=1`: Block is TNT
 * `boat=1`: Boat
 * `minecart=1`: Minecart
 * `food`: Item is a comestible item which can be consumed (healthy or unhealthy)
diff --git a/mods/tnt/init.lua b/mods/tnt/init.lua
index 8e2ebaf5..e34dc082 100644
--- a/mods/tnt/init.lua
+++ b/mods/tnt/init.lua
@@ -42,10 +42,10 @@ minetest.register_node("tnt:tnt", {
 	tiles = {"default_tnt_top.png", "default_tnt_bottom.png",
 			"default_tnt_side.png", "default_tnt_side.png",
 			"default_tnt_side.png", "default_tnt_side.png"},
-	drop = '', -- Get nothing
 	is_ground_content = false,
 	stack_max = 64,
 	description = "TNT",
+	groups = { dig_immediate = 3, tnt = 1, },
 	mesecons = {effector = {
 		action_on = tnt.ignite
 	}},