diff --git a/mods/mcl_fire/init.lua b/mods/mcl_fire/init.lua
index c3cfde3324..5f5b5e38ee 100644
--- a/mods/mcl_fire/init.lua
+++ b/mods/mcl_fire/init.lua
@@ -209,11 +209,25 @@ end
 function mcl_fire.add_fire(pos)
 	local null = {x=0, y=0, z=0}
 	pos.y = pos.y+0.19
-	minetest.add_particle(pos, null, null, 1.1,
-   					1.5, true, "default_fire_particle"..tostring(math.random(1,2)) ..".png")
+	minetest.add_particle({
+		pos = pos,
+		velocity = null,
+		acceleration = null,
+		expirationtime = 1.1,
+		size = 1.5,
+		collisiondetection = true,
+		texture = "default_fire_particle"..tostring(math.random(1,2)) ..".png"
+	})
 	pos.y = pos.y +0.01
-	minetest.add_particle(pos, null, null, 0.8,
-   					1.5, true, "default_fire_particle"..tostring(math.random(1,2)) ..".png")
+	minetest.add_particle({
+		pos = pos,
+		velocity = null,
+		acceleration = null,
+		expirationtime = 0.8,
+		size = 1.5,
+		collisiondetection = true,
+		texture = "default_fire_particle"..tostring(math.random(1,2)) ..".png"
+	})
 end
 
 dofile(minetest.get_modpath(minetest.get_current_modname()).."/flint_and_steel.lua")
diff --git a/mods/mcl_tnt/init.lua b/mods/mcl_tnt/init.lua
index a08e68e456..83c0a28f7f 100644
--- a/mods/mcl_tnt/init.lua
+++ b/mods/mcl_tnt/init.lua
@@ -77,7 +77,15 @@ end
 
 function TNT:on_step(dtime)
 	local pos = self.object:getpos()
-	minetest.add_particle({x=pos.x,y=pos.y+0.5,z=pos.z}, {x=math.random(-.1,.1),y=math.random(1,2),z=math.random(-.1,.1)}, {x=0,y=-0.1,z=0}, math.random(.5,1),math.random(1,2), false, "tnt_smoke.png")
+	minetest.add_particle({
+		pos = {x=pos.x,y=pos.y+0.5,z=pos.z},
+		velocity = {x=math.random(-.1,.1),y=math.random(1,2),z=math.random(-.1,.1)},
+		acceleration = {x=0,y=-0.1,z=0},
+		expirationtime = math.random(.5,1),
+		size = math.random(1,2),
+		collisiondetection = false,
+		texture = "tnt_smoke.png"
+	})
 	self.timer = self.timer + dtime
 	self.blinktimer = self.blinktimer + dtime
 	if self.blinktimer > 0.5 then