diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/config/DeferredDocumentChangedListener.java b/runelite-client/src/main/java/net/runelite/client/plugins/config/DeferredDocumentChangedListener.java
index c8ce0b37dc..7dbd7d73b4 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/config/DeferredDocumentChangedListener.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/config/DeferredDocumentChangedListener.java
@@ -10,8 +10,8 @@ import javax.swing.event.DocumentListener;
 
 class DeferredDocumentChangedListener implements DocumentListener
 {
-	private Timer timer;
-	private List<ChangeListener> listeners;
+	private final Timer timer;
+	private final List<ChangeListener> listeners;
 
 	DeferredDocumentChangedListener()
 	{