diff --git a/init.lua b/init.lua
index cdccd88..8678831 100644
--- a/init.lua
+++ b/init.lua
@@ -405,13 +405,13 @@ local function stamina_globaltimer(dtime)
 			local name = player:get_player_name()
 
 			-- damage player by 1 hp if saturation is < 2 (of 30)
-			if h < STAMINA_STARVE_LVL
+			if h and h < STAMINA_STARVE_LVL
 			and hp > 0 then
 				player:set_hp(hp - STAMINA_STARVE, {hunger = true})
 			end
 
 			-- don't heal if drowning or dead or poisoned
-			if h >= STAMINA_HEAL_LVL
+			if h and h >= STAMINA_HEAL_LVL
 			and h >= hp
 			and hp > 0
 			and air > 0