diff --git a/modules/src/main/java/org/archive/modules/recrawl/PersistProcessor.java b/modules/src/main/java/org/archive/modules/recrawl/PersistProcessor.java
index 11108bce..8c1f75f6 100644
--- a/modules/src/main/java/org/archive/modules/recrawl/PersistProcessor.java
+++ b/modules/src/main/java/org/archive/modules/recrawl/PersistProcessor.java
@@ -46,6 +46,7 @@ import org.archive.util.OneLineSimpleLogger;
 import org.archive.util.SURT;
 import org.archive.util.bdbje.EnhancedEnvironment;
 import org.archive.util.iterator.LineReadingIterator;
+import org.json.JSONObject;
 
 import com.sleepycat.bind.serial.SerialBinding;
 import com.sleepycat.bind.serial.StoredClassCatalog;
@@ -169,7 +170,7 @@ public abstract class PersistProcessor extends Processor {
         while (iter.hasNext()) {
             Entry<String,Map> item = iter.next(); 
             if (logger.isLoggable(Level.FINE)) {
-                logger.fine(item.getKey() + " " + item.getValue());
+                logger.fine(item.getKey() + " " + new JSONObject(item.getValue()));
             }
             
             if (historyMap != null) {