diff --git a/mods/default/nodes.lua b/mods/default/nodes.lua
index 73bc6034c2..247f3a7058 100644
--- a/mods/default/nodes.lua
+++ b/mods/default/nodes.lua
@@ -1053,7 +1053,7 @@ minetest.register_node("default:lava_flowing", {
 	liquid_range = 4,
 	damage_per_second = 4*2,
 	post_effect_color = {a=192, r=255, g=64, b=0},
-	groups = {lava=3, liquid=2, hot=3, igniter=1, not_in_creative_inventory=1},
+	groups = {lava=3, liquid=2, igniter=3, not_in_creative_inventory=1},
 })
 
 minetest.register_node("default:lava_source", {
@@ -1088,7 +1088,7 @@ minetest.register_node("default:lava_source", {
 	damage_per_second = 4*2,
 	post_effect_color = {a=192, r=255, g=64, b=0},
 	stack_max = 64,
-	groups = {lava=3, liquid=2, hot=3, igniter=1},
+	groups = {lava=3, liquid=2, igniter=3},
 })
 
 
diff --git a/mods/fire/init.lua b/mods/fire/init.lua
index 2a67ffe3a4..37a5b3c648 100644
--- a/mods/fire/init.lua
+++ b/mods/fire/init.lua
@@ -9,7 +9,7 @@ minetest.register_node("fire:basic_flame", {
 	}},
 	inventory_image = "fire_basic_flame.png",
 	light_source = 14,
-	groups = {igniter=2,dig_immediate=3,hot=3,dig_by_water=1},
+	groups = {igniter=2,dig_immediate=3,dig_by_water=1},
 	drop = '',
 	walkable = false,
 	buildable_to = true,