diff --git a/src/packages/discovery/model/DiscoveryHost.ts b/src/packages/discovery/model/DiscoveryHost.ts
index 9c04c20..a6a0489 100644
--- a/src/packages/discovery/model/DiscoveryHost.ts
+++ b/src/packages/discovery/model/DiscoveryHost.ts
@@ -6,5 +6,5 @@ export interface DiscoveryHost {
   excludeHosts: string[];
   includeHosts: string[];
 
-  discoveryPort: DiscoveryPort;
+  discoveryPort?: DiscoveryPort;
 }
diff --git a/src/packages/discovery/model/DiscoveryPort.ts b/src/packages/discovery/model/DiscoveryPort.ts
index 0320c47..90f5e79 100644
--- a/src/packages/discovery/model/DiscoveryPort.ts
+++ b/src/packages/discovery/model/DiscoveryPort.ts
@@ -7,5 +7,5 @@ export interface DiscoveryPort {
   includeTCP: boolean;
   includeUDP: boolean;
 
-  discoveryService: DiscoveryService;
+  discoveryService?: DiscoveryService;
 }
diff --git a/src/packages/discovery/model/DiscoveryZone.ts b/src/packages/discovery/model/DiscoveryZone.ts
index d3aba60..7a17f6a 100644
--- a/src/packages/discovery/model/DiscoveryZone.ts
+++ b/src/packages/discovery/model/DiscoveryZone.ts
@@ -1,7 +1,7 @@
 import { DiscoveryHost } from './DiscoveryHost';
 
 export interface DiscoveryZone {
-  excludePatterns: string[];
+  excludePatterns?: string[];
 
-  discoveryHost: DiscoveryHost;
+  discoveryHost?: DiscoveryHost;
 }