diff --git a/data-store/src/main/java/org/lucares/pdb/datastore/Doc.java b/data-store/src/main/java/org/lucares/pdb/datastore/Doc.java
index 2bbdba3..8c2cfb9 100644
--- a/data-store/src/main/java/org/lucares/pdb/datastore/Doc.java
+++ b/data-store/src/main/java/org/lucares/pdb/datastore/Doc.java
@@ -58,7 +58,9 @@ public class Doc {
 
     @Override
     public String toString() {
-        return "Doc [partitionId=" + partitionId + ", tags=" + tags + ", rootBlockNumber=" + rootBlockNumber + "]";
+
+        return "Doc [partitionId=" + partitionId + ", tags=" + Tags.STRING_COMPRESSOR.asString(tags)
+                + ", rootBlockNumber=" + rootBlockNumber + "]";
     }
 
 }
diff --git a/data-store/src/main/java/org/lucares/pdb/datastore/Entry.java b/data-store/src/main/java/org/lucares/pdb/datastore/Entry.java
index 176cc53..32d0d22 100644
--- a/data-store/src/main/java/org/lucares/pdb/datastore/Entry.java
+++ b/data-store/src/main/java/org/lucares/pdb/datastore/Entry.java
@@ -37,7 +37,8 @@ public class Entry {
     public String toString() {
 
         final OffsetDateTime date = Instant.ofEpochMilli(epochMilli).atOffset(ZoneOffset.UTC);
-        return date.format(DateTimeFormatter.ISO_ZONED_DATE_TIME) + " = " + value + " (" + tags + ")";
+        return date.format(DateTimeFormatter.ISO_ZONED_DATE_TIME) + " = " + value + " ("
+                + Tags.STRING_COMPRESSOR.asString(tags) + ")";
     }
 
     @Override