diff --git a/lib/properties/index.ts b/lib/properties/index.ts
index 3b20f6e..27e19e5 100644
--- a/lib/properties/index.ts
+++ b/lib/properties/index.ts
@@ -6,9 +6,7 @@ export { PropertyObject } from "./PropertyObject";
 export { PropertyString } from "./PropertyString";
 
 export const test = "";
-export type UnionToIntersection<T> = ((x: T) => any) extends (x: infer R) => any
-  ? R
-  : never;
+export type UnionToIntersection<T> = ((x: T) => any) extends (x: infer R) => any ? R : never;
 
 /**
  * This is used during creating the type of properties fn in the service package.
@@ -20,8 +18,12 @@ export type UnionToIntersection<T> = ((x: T) => any) extends (x: infer R) => any
 export function setupPropertiesExport(
   fn: (
     ...args: Parameters<ExpectedExports.properties>
-  ) => Promise<Properties<PackagePropertiesV2>>
+  ) => void | Promise<void> | Promise<Properties<PackagePropertiesV2>>
 ): ExpectedExports.properties {
-  return (...args: Parameters<ExpectedExports.properties>) =>
-    fn(...args).then((x) => x.build());
+  return async (...args: Parameters<ExpectedExports.properties>) => {
+    const result = await fn(...args);
+    if (result) {
+      return result.build();
+    }
+  };
 }
diff --git a/package.json b/package.json
index 0ba4683..5810700 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "start-sdk",
-  "version": "0.4.0-lib0.charlie18",
+  "version": "0.4.0-lib0.charlie19",
   "description": "For making the patterns that are wanted in making services for the startOS.",
   "main": "./lib/index.js",
   "types": "./lib/index.d.ts",