diff --git a/mapgen.lua b/mapgen.lua
index 8f8f69e..3872936 100644
--- a/mapgen.lua
+++ b/mapgen.lua
@@ -262,7 +262,9 @@ function mapgen_rivers.make_chunk(minp, maxp, seed)
 	minetest.log("verbose", ("[mapgen_rivers] Done in %5.3f s"):format(t))
 end
 
-minetest.register_on_generated(mapgen_rivers.make_chunk)
+-- Enforce first position in mapgen callbacks
+table.insert(minetest.registered_on_generateds, 1, mapgen_rivers.make_chunk)
+--minetest.register_on_generated(mapgen_rivers.make_chunk)
 
 minetest.register_on_shutdown(function()
 	local avg = sumtime / ngen