diff --git a/src/model/build-parameters.ts b/src/model/build-parameters.ts
index e774441a..9f59d8d2 100644
--- a/src/model/build-parameters.ts
+++ b/src/model/build-parameters.ts
@@ -33,7 +33,7 @@ class BuildParameters {
   public androidSdkManagerParameters!: string;
   public customParameters!: string;
   public sshAgent!: string;
-  public cloudRunnerCluster!: string;
+  public cloudRunnerCluster!: string | undefined;
   public awsBaseStackName!: string;
   public gitPrivateToken!: string;
   public awsStackName!: string;