diff --git a/flake.nix b/flake.nix
index 12fb596..4341dac 100644
--- a/flake.nix
+++ b/flake.nix
@@ -47,11 +47,14 @@
 						cgibin = pkgs.copyPathToStore ./cgi-bin;
 					};
 
-					container = pkgs.dockerTools.buildImage {
-						name = "angestoepselt-site-container";
+					container = pkgs.dockerTools.buildLayeredImage {
+						name = "angestoepselt-site";
 						tag = "latest";
 
 						config = {
+							Env = [
+								"SITE_DIRECTORY=\"${packages.site}\""
+							];
 							Cmd = [
 								"${pkgs.lighttpd}/bin/lighttpd"
 								"-Df"