diff --git a/poseidon.nix b/poseidon.nix
index 2093e68..6e02ba3 100644
--- a/poseidon.nix
+++ b/poseidon.nix
@@ -5,6 +5,9 @@
     # Default configuration
     ./base
 
+    # Module definitions
+    ./modules
+
     # Service definitions
     ./services