diff --git a/README.md b/README.md
index 4e752be..8809d7b 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Pyramids (with Treasurer support) [`tsm_pyramids`]
 
-* Version: 1.0.2
+* Version: 1.0.3
 
 ## Description
 This is a mod for Minetest Game which adds randomly spawned pyramids in deserts and
diff --git a/mummy.lua b/mummy.lua
index 1d3c046..4364cce 100644
--- a/mummy.lua
+++ b/mummy.lua
@@ -151,7 +151,7 @@ MUMMY_DEF.on_punch = function(self, puncher, time_from_last_punch, tool_capabili
 	end
 	self.attacker = puncher
 
-	if damage > 0 then
+	if damage and damage > 0 then
 		self.last_damage = {
 			type = "punch",
 			puncher = puncher,