diff --git a/map/open-mobile-map-package/src/main/java/com/esri/samples/open_mobile_map_package/OpenMobileMapPackageSample.java b/map/open-mobile-map-package/src/main/java/com/esri/samples/open_mobile_map_package/OpenMobileMapPackageSample.java
index ae8834dcaf..36f425d5da 100644
--- a/map/open-mobile-map-package/src/main/java/com/esri/samples/open_mobile_map_package/OpenMobileMapPackageSample.java
+++ b/map/open-mobile-map-package/src/main/java/com/esri/samples/open_mobile_map_package/OpenMobileMapPackageSample.java
@@ -31,6 +31,7 @@
 public class OpenMobileMapPackageSample extends Application {
 
   private MapView mapView;
+  private MobileMapPackage mobileMapPackage;
 
   @Override
   public void start(Stage stage) {
@@ -52,7 +53,7 @@ public void start(Stage stage) {
 
       //load a mobile map package
       final String mmpkPath = new File("./samples-data/mmpk/Yellowstone.mmpk").getAbsolutePath();
-      MobileMapPackage mobileMapPackage = new MobileMapPackage(mmpkPath);
+      mobileMapPackage = new MobileMapPackage(mmpkPath);
 
       mobileMapPackage.loadAsync();
       mobileMapPackage.addDoneLoadingListener(() -> {