diff --git a/zoie-core/src/main/java/proj/zoie/api/ZoieSegmentReader.java b/zoie-core/src/main/java/proj/zoie/api/ZoieSegmentReader.java
index e5ca2b94..8ed11034 100644
--- a/zoie-core/src/main/java/proj/zoie/api/ZoieSegmentReader.java
+++ b/zoie-core/src/main/java/proj/zoie/api/ZoieSegmentReader.java
@@ -22,6 +22,8 @@
 
 import java.io.IOException;
 import java.util.Arrays;
+import java.util.Collections;
+import java.util.Set;
 
 import org.apache.lucene.document.Document;
 import org.apache.lucene.document.Field;
@@ -158,8 +160,10 @@ public R getDecoratedReader() {
     return _decoratedReader;
   }
 
+  public final Set<String> DOCUMENT_STORE_FIELD_SET = Collections.singleton(AbstractZoieIndexable.DOCUMENT_STORE_FIELD);
+
   public BytesRef getStoredValue(int docid) throws IOException {
-    Document doc = in.document(docid);
+    Document doc = in.document(docid, DOCUMENT_STORE_FIELD_SET);
     if (doc != null) {
       return doc.getBinaryValue(AbstractZoieIndexable.DOCUMENT_STORE_FIELD);
     }