diff --git a/.gitmodules b/.gitmodules
index 89fd415..765d1e2 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "simulations/airshower_beacon_simulation/earsim"]
-	path = simulations/airshower_beacon_simulation/earsim
+	path = simulations/airshower_beacon_simulation/lib/earsim
 	url = https://gitlab.com/harmscho/earsim.git
diff --git a/simulations/airshower_beacon_simulation/earsim b/simulations/airshower_beacon_simulation/lib/earsim
similarity index 100%
rename from simulations/airshower_beacon_simulation/earsim
rename to simulations/airshower_beacon_simulation/lib/earsim
diff --git a/simulations/airshower_beacon_simulation/lib.py b/simulations/airshower_beacon_simulation/lib/lib.py
similarity index 100%
rename from simulations/airshower_beacon_simulation/lib.py
rename to simulations/airshower_beacon_simulation/lib/lib.py