diff --git a/source/net/yacy/kelondro/blob/MapDataMining.java b/source/net/yacy/kelondro/blob/MapDataMining.java
index 5814179e3..40c707911 100644
--- a/source/net/yacy/kelondro/blob/MapDataMining.java
+++ b/source/net/yacy/kelondro/blob/MapDataMining.java
@@ -260,7 +260,7 @@ public class MapDataMining extends MapHeap {
         if ((sortfields != null) || (longaccfields != null) || (floataccfields != null)) {
             Map<String, String> map;
             try {
-                map = super.get(key);
+                map = super.get(key, false);
                 if (map != null) {
 
                     // update accumulators (subtract)
@@ -382,7 +382,7 @@ public class MapDataMining extends MapHeap {
             while (keyIterator.hasNext()) {
                 nextKey = keyIterator.next();
                 try {
-                    map = get(nextKey);
+                    map = get(nextKey, false);
                 } catch (final IOException e) {
                     Log.logWarning("MapDataMining", e.getMessage());
                     continue;
diff --git a/source/net/yacy/kelondro/blob/MapHeap.java b/source/net/yacy/kelondro/blob/MapHeap.java
index 278e0b3a2..d476ab41e 100644
--- a/source/net/yacy/kelondro/blob/MapHeap.java
+++ b/source/net/yacy/kelondro/blob/MapHeap.java
@@ -390,7 +390,7 @@ public class MapHeap implements Map<byte[], Map<String, String>> {
                 return null;
             }
             try {
-                final Map<String, String> obj = get(nextKey);
+                final Map<String, String> obj = get(nextKey, false);
                 if (obj == null) throw new kelondroException("no more elements available");
                 return obj;
             } catch (final IOException e) {