diff --git a/depends.txt b/depends.txt
deleted file mode 100644
index c48fe0d..0000000
--- a/depends.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-default
-intllib?
-
diff --git a/mod.conf b/mod.conf
index 033b72e..b3312f6 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1,2 +1,4 @@
 name = biome_lib
 min_minetest_version = 5.2.0
+depends = default
+optional_depends = intllib