diff --git a/main.lua b/main.lua
index 441ab93..257826d 100644
--- a/main.lua
+++ b/main.lua
@@ -34,6 +34,7 @@ minetest.register_node("gloopblocks:evil_block", {
 	light_source = 5,
 	is_ground_content = true,
 	groups = {cracky=2},
+
 	sounds = default.node_sound_stone_defaults(),
 })
 
@@ -130,6 +131,11 @@ minetest.register_node("gloopblocks:scaffolding", {
 	sounds = default.node_sound_wood_defaults(),
 })
 
+local cbox = {
+	type = "fixed",
+	fixed = { -0.5, -0.5, -0.5, 0.5, 0.5625, 0.5 }
+}
+
 minetest.register_node("gloopblocks:concrete_sidewalk", {
 	description = S("Concrete sidewalk"),
 	tiles = {
@@ -140,6 +146,8 @@ minetest.register_node("gloopblocks:concrete_sidewalk", {
 	drawtype = "mesh",
 	mesh = "gloopblocks_sidewalk.obj",
 	paramtype2 = "facedir",
+	selection_box = cbox,
+	collision_box = cbox,
 	on_rotate = screwdriver.rotate_simple,
 	groups = {cracky=2},
 	sounds = default.node_sound_stone_defaults(),