diff --git a/x-pack/plugins/fleet/common/types/models/epm.ts b/x-pack/plugins/fleet/common/types/models/epm.ts
index e7e5a931b7429f..5c99831eaac34a 100644
--- a/x-pack/plugins/fleet/common/types/models/epm.ts
+++ b/x-pack/plugins/fleet/common/types/models/epm.ts
@@ -273,7 +273,7 @@ export type PackageInfo =
 export interface Installation extends SavedObjectAttributes {
   installed_kibana: KibanaAssetReference[];
   installed_es: EsAssetReference[];
-  package_assets: PackageAssetReference[];
+  package_assets?: PackageAssetReference[];
   es_index_patterns: Record<string, string>;
   name: string;
   version: string;
diff --git a/x-pack/plugins/fleet/server/services/epm/packages/get.ts b/x-pack/plugins/fleet/server/services/epm/packages/get.ts
index 0fac68426b73e0..c07b88a45e6dc9 100644
--- a/x-pack/plugins/fleet/server/services/epm/packages/get.ts
+++ b/x-pack/plugins/fleet/server/services/epm/packages/get.ts
@@ -16,6 +16,7 @@ import {
 import { PACKAGES_SAVED_OBJECT_TYPE } from '../../../constants';
 import { ArchivePackage, RegistryPackage, EpmPackageAdditions } from '../../../../common/types';
 import { Installation, PackageInfo, KibanaAssetType } from '../../../types';
+import { IngestManagerError } from '../../../errors';
 import * as Registry from '../registry';
 import { createInstallableFrom, isRequiredPackage } from './index';
 import { getEsPackage } from '../archive/storage';
@@ -185,7 +186,8 @@ export async function getPackageFromSource(options: {
       name: pkgName,
       version: pkgVersion,
     });
-    if (!res) {
+
+    if (!res && installedPkg.package_assets) {
       res = await getEsPackage(
         pkgName,
         pkgVersion,
@@ -207,7 +209,9 @@ export async function getPackageFromSource(options: {
     // else package is not installed or installed and missing from cache and storage and installed from registry
     res = await Registry.getRegistryPackage(pkgName, pkgVersion);
   }
-  if (!res) throw new Error(`package info for ${pkgName}-${pkgVersion} does not exist`);
+  if (!res) {
+    throw new IngestManagerError(`package info for ${pkgName}-${pkgVersion} does not exist`);
+  }
   return {
     paths: res.paths,
     packageInfo: res.packageInfo,