diff --git a/server/api/v1/admin/import/version/index.post.ts b/server/api/v1/admin/import/version/index.post.ts
index 8faf0d1..ab9ad1c 100644
--- a/server/api/v1/admin/import/version/index.post.ts
+++ b/server/api/v1/admin/import/version/index.post.ts
@@ -1,5 +1,5 @@
 import { type } from "arktype";
-import { readDropValidatedBody } from "~/server/arktype";
+import { readDropValidatedBody, throwingArktype } from "~/server/arktype";
 import aclManager from "~/server/internal/acls";
 import prisma from "~/server/internal/db/database";
 import libraryManager from "~/server/internal/library";
@@ -17,7 +17,7 @@ const ImportVersion = type({
   onlySetup: "boolean = false",
   delta: "boolean = false",
   umuId: "string = ''",
-});
+}).configure(throwingArktype);
 
 export default defineEventHandler(async (h3) => {
   const allowed = await aclManager.allowSystemACL(h3, ["import:version:new"]);
@@ -62,7 +62,7 @@ export default defineEventHandler(async (h3) => {
     if (!delta && !launch)
       throw createError({
         statusCode: 400,
-        statusMessage: "Startup executable is required for non-update versions",
+        statusMessage: "Launch executable is required for non-update versions",
       });
   }
 
diff --git a/server/arktype.ts b/server/arktype.ts
index b56406e..466851e 100644
--- a/server/arktype.ts
+++ b/server/arktype.ts
@@ -19,9 +19,20 @@ export async function readDropValidatedBody<T>(
   event: H3Event,
   validate: (data: object) => T,
 ): Promise<T> {
-  const _body = await readBody(event);
+  const body = await readBody(event);
   try {
-    return validate(_body);
+    // Delete all values that are 'null'
+    if (typeof body === "object" && !Array.isArray(body) && body !== null) {
+      for (const [key, value] of Object.entries(body) as Array<
+        [string, unknown]
+      >) {
+        if (value === null) {
+          // eslint-disable-next-line @typescript-eslint/no-dynamic-delete
+          delete body[key];
+        }
+      }
+    }
+    return validate(body);
   } catch (e) {
     const t = await useTranslation(event);