diff --git a/mesecons_hydroturbine/init.lua b/mesecons_hydroturbine/init.lua
index 395b8f6..afa21e9 100644
--- a/mesecons_hydroturbine/init.lua
+++ b/mesecons_hydroturbine/init.lua
@@ -22,7 +22,7 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_off", {
 		type = "fixed",
 		fixed = { -0.5, -0.5, -0.5, 0.5, 1.5, 0.5 },
 	},
-	sounds = default.node_sound_stone_defaults(),
+	sounds = default.node_sound_metal_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.off
 	}},
@@ -51,7 +51,7 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_on", {
 		type = "fixed",
 		fixed = { -0.5, -0.5, -0.5, 0.5, 1.5, 0.5 },
 	},
-	sounds = default.node_sound_stone_defaults(),
+	sounds = default.node_sound_metal_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.on
 	}},