diff --git a/mesecons_solarpanel/init.lua b/mesecons_solarpanel/init.lua
index bea4b61..842fc54 100644
--- a/mesecons_solarpanel/init.lua
+++ b/mesecons_solarpanel/init.lua
@@ -10,15 +10,15 @@ minetest.register_node("mesecons_solarpanel:solar_panel", {
 	is_ground_content = true,
 	node_box = {
 		type = "wallmounted",
-		wall_bottom = {-0.4375, -0.5, -0.4375, 0.4375, -0.45, 0.4375},
-		wall_top = {-0.4375, 0.45, -0.4375, 0.4375, 0.5, 0.4375},
-		wall_side = {-0.5, -0.4375, -0.4375, -0.45, 0.4375, 0.4375},
+		wall_bottom = { -7/16, -8/16, -7/16,  7/16, -7/16, 7/16 },
+		wall_top    = { -7/16,  7/16, -7/16,  7/16,  8/16, 7/16 },
+		wall_side   = { -8/16, -7/16, -7/16, -7/16,  7/16, 7/16 },
 	},
 	selection_box = {
 		type = "wallmounted",
-		wall_bottom = {-0.4375, -0.5, -0.4375, 0.4375, -0.45, 0.4375},
-		wall_top = {-0.4375, 0.45, -0.4375, 0.4375, 0.5, 0.4375},
-		wall_side = {-0.5, -0.4375, -0.4375, -0.45, 0.4375, 0.4375},
+		wall_bottom = { -7/16, -8/16, -7/16,  7/16, -7/16, 7/16 },
+		wall_top    = { -7/16,  7/16, -7/16,  7/16,  8/16, 7/16 },
+		wall_side   = { -8/16, -7/16, -7/16, -7/16,  7/16, 7/16 },
 	},
 	furnace_burntime = 5,
 	groups = {dig_immediate=3},