diff --git a/src/main/java/org/qortal/controller/arbitrary/ArbitraryDataFileRequestThread.java b/src/main/java/org/qortal/controller/arbitrary/ArbitraryDataFileRequestThread.java
index 5f491411..0c2834d0 100644
--- a/src/main/java/org/qortal/controller/arbitrary/ArbitraryDataFileRequestThread.java
+++ b/src/main/java/org/qortal/controller/arbitrary/ArbitraryDataFileRequestThread.java
@@ -31,8 +31,6 @@ public class ArbitraryDataFileRequestThread implements Runnable {
 
         try {
             while (!Controller.isStopping()) {
-                Thread.sleep(1000);
-
                 Long now = NTP.getTime();
                 this.processFileHashes(now);
             }
@@ -41,7 +39,7 @@ public class ArbitraryDataFileRequestThread implements Runnable {
         }
     }
 
-    private void processFileHashes(Long now) {
+    private void processFileHashes(Long now) throws InterruptedException {
 		if (Controller.isStopping()) {
             return;
         }
@@ -91,6 +89,7 @@ public class ArbitraryDataFileRequestThread implements Runnable {
 
         if (!shouldProcess) {
             // Nothing to do
+            Thread.sleep(1000L);
             return;
         }