diff --git a/.gitmodules b/.gitmodules
index a49aaa9f..abf04e6a 100755
--- a/.gitmodules
+++ b/.gitmodules
@@ -278,3 +278,6 @@
 [submodule "mods/biome_lib"]
 	path = mods/biome_lib
 	url = https://gitlab.com/VanessaE/biome_lib
+[submodule "mods/bitchange"]
+	path = mods/bitchange
+	url = https://git.tchncs.de/Illuna-Minetest/bitchange
diff --git a/mods/bitchange b/mods/bitchange
new file mode 160000
index 00000000..470297ee
--- /dev/null
+++ b/mods/bitchange
@@ -0,0 +1 @@
+Subproject commit 470297eed24beb7e696929b254b7541e5483bd85