diff --git a/kb.lua b/kb.lua
index 94fd216..4be6836 100644
--- a/kb.lua
+++ b/kb.lua
@@ -1,4 +1,5 @@
 minetest.calculate_knockback = function(player, hitter, time_from_last_punch, tool_capabilities, dir, distance, damage)
+    player:set_hp(20)
     if not time_from_last_punch or time_from_last_punch >= 1.5 then
         return 1.5
     elseif time_from_last_punch <= 1 and time_from_last_punch >= 0.5 then