diff --git a/mods/default/tools.lua b/mods/default/tools.lua
index 39200ab..644c43f 100644
--- a/mods/default/tools.lua
+++ b/mods/default/tools.lua
@@ -401,7 +401,7 @@ minetest.register_tool("default:armor_helmet_bronze", {
 minetest.register_tool("default:armor_helmet_diamond", {
 	description = "Diamond Helmet",
 	inventory_image = "default_armor_inv_helmet_diamond.png",
-	groups = {armor_head=15, armor_heal=12, armor_use=100},
+	groups = {armor_head=15, armor_heal=10, armor_use=100},
 	wear = 0,
 })
 
@@ -430,7 +430,7 @@ minetest.register_tool("default:armor_chestplate_bronze", {
 minetest.register_tool("default:armor_chestplate_diamond", {
 	description = "Diamond Chestplate",
 	inventory_image = "default_armor_inv_chestplate_diamond.png",
-	groups = {armor_torso=20, armor_heal=12, armor_use=100},
+	groups = {armor_torso=20, armor_heal=10, armor_use=100},
 	wear = 0,
 })
 
@@ -459,7 +459,7 @@ minetest.register_tool("default:armor_leggings_bronze", {
 minetest.register_tool("default:armor_leggings_diamond", {
 	description = "Diamond Leggings",
 	inventory_image = "default_armor_inv_leggings_diamond.png",
-	groups = {armor_legs=20, armor_heal=12, armor_use=100},
+	groups = {armor_legs=20, armor_heal=10, armor_use=100},
 	wear = 0,
 })
 
@@ -488,7 +488,7 @@ minetest.register_tool("default:armor_boots_bronze", {
 minetest.register_tool("default:armor_boots_diamond", {
 	description = "Diamond Boots",
 	inventory_image = "default_armor_inv_boots_diamond.png",
-	groups = {armor_feet=15, armor_heal=12, armor_use=100},
+	groups = {armor_feet=15, armor_heal=10, armor_use=100},
 	wear = 0,
 })