diff --git a/mods/cavestuff/nodes.lua b/mods/cavestuff/nodes.lua
index 654ceeb8..7dcf6b75 100644
--- a/mods/cavestuff/nodes.lua
+++ b/mods/cavestuff/nodes.lua
@@ -15,7 +15,7 @@ minetest.register_node("cavestuff:pebble_1",{
 	 tiles = {"undergrowth_pebble.png"},
 	 paramtype = "light",
 	paramtype2 = "facedir",
-	 groups = {cracky=3, stone=1},
+	 groups = {cracky=3, stone=1, attached_node=1},
 	 selection_box = cbox,
 	 collision_box = cbox,
 	 on_place = function(itemstack, placer, pointed_thing)
@@ -35,7 +35,7 @@ minetest.register_node("cavestuff:pebble_2",{
 	 tiles = {"undergrowth_pebble.png"},
 	 paramtype = "light",
 	paramtype2 = "facedir",
-	 groups = {cracky=3, stone=1, not_in_creative_inventory=1},
+	 groups = {cracky=3, stone=1, attached_node=1, not_in_creative_inventory=1},
 	selection_box = cbox,
 	collision_box = cbox,
 	 sounds = default.node_sound_stone_defaults(),
@@ -48,7 +48,7 @@ minetest.register_node("cavestuff:desert_pebble_1",{
 	 tiles = {"default_desert_stone.png"},
 	 paramtype = "light",
 	paramtype2 = "facedir",
-	 groups = {cracky=3, stone=1},
+	 groups = {cracky=3, stone=1, attached_node=1},
 	selection_box = cbox,
 	collision_box = cbox,
 	 on_place = function(itemstack, placer, pointed_thing)
@@ -67,7 +67,7 @@ minetest.register_node("cavestuff:desert_pebble_2",{
 	 tiles = {"default_desert_stone.png"},
 	 paramtype = "light",
 	paramtype2 = "facedir",
-	 groups = {cracky=3, stone=1, not_in_creative_inventory=1},
+	 groups = {cracky=3, stone=1, attached_node=1, not_in_creative_inventory=1},
 	selection_box = cbox,
 	collision_box = cbox,
 	 sounds = default.node_sound_stone_defaults(),
diff --git a/mods/trunks/nodes.lua b/mods/trunks/nodes.lua
index a1e7784a..cc7f9197 100644
--- a/mods/trunks/nodes.lua
+++ b/mods/trunks/nodes.lua
@@ -113,7 +113,7 @@ for r = 0, 3 do
 		sunlight_propagates = true,
 		walkable = false,
 		node_box = cbox,
-		groups = {snappy = 3, flammable = 3, attached_node=1, not_in_creative_inventory = r },
+		groups = {snappy = 3, flammable = 3, attached_node=1, not_in_creative_inventory = r},
 		sounds = default.node_sound_leaves_defaults(),
 	})
 end