diff --git a/deployment/data-model.nix b/deployment/data-model.nix
index 8f584af4..525f9c31 100644
--- a/deployment/data-model.nix
+++ b/deployment/data-model.nix
@@ -85,5 +85,9 @@ in
         };
       };
     };
+    deployments = mkOption {
+      description = "Deployment of a configuration of applications to a run-time environment";
+      type = attrsOf deployment;
+    };
   };
 }