diff --git a/x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/edit_package_policy_page/index.tsx b/x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/edit_package_policy_page/index.tsx
index 0255d913a753b..8e5260ea84b33 100644
--- a/x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/edit_package_policy_page/index.tsx
+++ b/x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/edit_package_policy_page/index.tsx
@@ -389,7 +389,8 @@ export const EditPackagePolicyForm = memo<{
   const [formState, setFormState] = useState<PackagePolicyFormState>('INVALID');
   const savePackagePolicy = async () => {
     setFormState('LOADING');
-    const result = await sendUpdatePackagePolicy(packagePolicyId, packagePolicy);
+    const { elasticsearch, ...restPackagePolicy } = packagePolicy; // ignore 'elasticsearch' property since it fails route validation
+    const result = await sendUpdatePackagePolicy(packagePolicyId, restPackagePolicy);
     setFormState('SUBMITTED');
     return result;
   };