diff --git a/wallettemplate/src/main/java/org/bitcoinj/walletfx/controls/ClickableBitcoinAddress.java b/wallettemplate/src/main/java/org/bitcoinj/walletfx/controls/ClickableBitcoinAddress.java
index c084b8952..bdff64959 100644
--- a/wallettemplate/src/main/java/org/bitcoinj/walletfx/controls/ClickableBitcoinAddress.java
+++ b/wallettemplate/src/main/java/org/bitcoinj/walletfx/controls/ClickableBitcoinAddress.java
@@ -63,7 +63,7 @@ public class ClickableBitcoinAddress extends AnchorPane implements OverlayContro
     @FXML protected Label copyWidget;
     @FXML protected Label qrCode;
 
-    protected SimpleObjectProperty<Address> address = new SimpleObjectProperty<>();
+    protected final SimpleObjectProperty<Address> address = new SimpleObjectProperty<>();
     private final StringExpression addressStr;
 
     private OverlayableStackPaneController rootController;