diff --git a/src/main/java/org/qortal/controller/Controller.java b/src/main/java/org/qortal/controller/Controller.java
index 9d0914b7..5655db0c 100644
--- a/src/main/java/org/qortal/controller/Controller.java
+++ b/src/main/java/org/qortal/controller/Controller.java
@@ -541,6 +541,8 @@ public class Controller extends Thread {
 
 				// Clean up arbitrary data request cache
 				ArbitraryDataManager.getInstance().cleanupRequestCache(now);
+				// Clean up arbitrary data queues and lists
+				ArbitraryDataManager.getInstance().cleanupQueues(now);
 
 				// Time to 'checkpoint' uncommitted repository writes?
 				if (now >= repositoryCheckpointTimestamp + repositoryCheckpointInterval) {