diff --git a/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/ui/GenerateDialog.java b/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/ui/GenerateDialog.java
index 0389045b0..1400ec0e1 100644
--- a/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/ui/GenerateDialog.java
+++ b/examples/hawkbit-device-simulator/src/main/java/org/eclipse/hawkbit/simulator/ui/GenerateDialog.java
@@ -65,7 +65,7 @@ public class GenerateDialog extends Window {
         final TextField tf2 = new TextField("amount", new ObjectProperty<Integer>(10));
         tf2.setIcon(FontAwesome.GEAR);
         tf2.setRequired(true);
-        tf2.addValidator(new RangeValidator<Integer>("Must be between 1 and 1000", Integer.class, 1, 1000));
+        tf2.addValidator(new RangeValidator<Integer>("Must be between 1 and 30000", Integer.class, 1, 30000));
 
         final TextField tf3 = new TextField("tenant", "default");
         tf3.setIcon(FontAwesome.USER);