diff --git a/.gitmodules b/.gitmodules
index 54e2ea4..a683e78 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -424,3 +424,6 @@
 [submodule "weather"]
 	path = weather
 	url = https://sys4.fr/gitea/nalc/minetest_mod_weather.git
+[submodule "async"]
+	path = async
+	url = https://sys4.fr/gitea/mtcontrib/async.git
diff --git a/async b/async
new file mode 160000
index 0000000..6096d56
--- /dev/null
+++ b/async
@@ -0,0 +1 @@
+Subproject commit 6096d5601a0c196ca52f976c3db02643d0e8aec0