diff --git a/mods/ITEMS/mcl_fire/flint_and_steel.lua b/mods/ITEMS/mcl_fire/flint_and_steel.lua
index 9f39c2ea64..51fd7311e5 100644
--- a/mods/ITEMS/mcl_fire/flint_and_steel.lua
+++ b/mods/ITEMS/mcl_fire/flint_and_steel.lua
@@ -2,7 +2,7 @@
 minetest.register_tool("mcl_fire:flint_and_steel", {
 	description = "Flint and Steel",
 	_doc_items_longdesc = "Flint and steel is a tool to start fires and ignite blocks.",
-	_doc_items_usagehelp = "Rightclick the surface of a block to attempt to light a fire in front of it. On netherrack it will start an eternal fire. Using it on TNT will ignite it.",
+	_doc_items_usagehelp = "Rightclick the surface of a block to attempt to light a fire in front of it. On netherrack and magma blocks it will start an eternal fire. Using it on TNT will ignite it.",
 	inventory_image = "mcl_fire_flint_and_steel.png",
 	liquids_pointable = false,
 	stack_max = 1,
diff --git a/mods/ITEMS/mcl_fire/init.lua b/mods/ITEMS/mcl_fire/init.lua
index 2bab9b7af6..3a1dab842a 100644
--- a/mods/ITEMS/mcl_fire/init.lua
+++ b/mods/ITEMS/mcl_fire/init.lua
@@ -9,7 +9,7 @@ mcl_fire = {}
 
 -- Flame nodes
 
-local fire_help = "Fire is a damaging and destructive but short-lived kind of block. It will destroy and spread towards near flammable blocks, but fire will disappear when there is nothing to burn left. It will be extinguished by nearby water and rain. Fire can be destroyed safely by punching it, but it is hurtful if you stand directly in it."
+local fire_help = "Fire is a damaging and destructive but short-lived kind of block. It will destroy and spread towards near flammable blocks, but fire will disappear when there is nothing to burn left. It will be extinguished by nearby water and rain. Fire can be destroyed safely by punching it, but it is hurtful if you stand directly in it. If a fire is started above netherrack or a magma block, it will immediately turn into an eternal fire.",
 local eternal_fire_help = "Eternal fire is a damaging and destructive block. It will create fire around it when flammable blocks are nearby. Eternal fire can be extinguished by punches and nearby water blocks. Other than (normal) fire, eternal fire does not get extinguished on its own and also continues to burn under rain. Punching eternal fire is safe, but it hurts if you stand inside."
 
 minetest.register_node("mcl_fire:fire", {
diff --git a/mods/ITEMS/mcl_nether/init.lua b/mods/ITEMS/mcl_nether/init.lua
index f6275c78b7..7de4d46929 100644
--- a/mods/ITEMS/mcl_nether/init.lua
+++ b/mods/ITEMS/mcl_nether/init.lua
@@ -37,7 +37,7 @@ minetest.register_node("mcl_nether:quartz_ore", {
 
 minetest.register_node("mcl_nether:netherrack", {
 	description = "Netherrack",
-	_doc_items_longdesc = "Netherrack is a stone-like block home to the Nether. Using flint on steel on netherrack will create eternal fire instead of normal fire.",
+	_doc_items_longdesc = "Netherrack is a stone-like block home to the Nether. Starting a fire on this block will create an eternal fire.",
 	stack_max = 64,
 	tiles = {"mcl_nether_netherrack.png"},
 	is_ground_content = true,
@@ -49,7 +49,7 @@ minetest.register_node("mcl_nether:netherrack", {
 
 minetest.register_node("mcl_nether:magma", {
 	description = "Magma Block",
-	_doc_items_longdesc = "Magma blocks are hot solid blocks which hurt anyone standing on it, unless they have fire resistance.",
+	_doc_items_longdesc = "Magma blocks are hot solid blocks which hurt anyone standing on it, unless they have fire resistance. Starting a fire on this block will create an eternal fire.",
 	stack_max = 64,
 	tiles = {{name="mcl_nether_magma.png", animation={type="vertical_frames", aspect_w=32, aspect_h=32, length=1.5}}},
 	is_ground_content = true,