diff --git a/plugin/trino-delta-lake/src/main/java/io/trino/plugin/deltalake/transactionlog/checkpoint/CheckpointEntryIterator.java b/plugin/trino-delta-lake/src/main/java/io/trino/plugin/deltalake/transactionlog/checkpoint/CheckpointEntryIterator.java
index 353a291027eb..85c1bed2be34 100644
--- a/plugin/trino-delta-lake/src/main/java/io/trino/plugin/deltalake/transactionlog/checkpoint/CheckpointEntryIterator.java
+++ b/plugin/trino-delta-lake/src/main/java/io/trino/plugin/deltalake/transactionlog/checkpoint/CheckpointEntryIterator.java
@@ -521,8 +521,12 @@ private DeltaLakeTransactionLogEntry buildTxnEntry(ConnectorSession session, Blo
         return DeltaLakeTransactionLogEntry.transactionEntry(result);
     }
 
+    @Nullable
     private String getString(Block block, int position)
     {
+        if (block.isNull(position)) {
+            return null;
+        }
         return block.getSlice(position, 0, block.getSliceLength(position)).toString(UTF_8);
     }
 
diff --git a/plugin/trino-delta-lake/src/test/java/io/trino/plugin/deltalake/transactionlog/checkpoint/TestCheckpointEntryIterator.java b/plugin/trino-delta-lake/src/test/java/io/trino/plugin/deltalake/transactionlog/checkpoint/TestCheckpointEntryIterator.java
index 984ad11f7823..3c8109f189c1 100644
--- a/plugin/trino-delta-lake/src/test/java/io/trino/plugin/deltalake/transactionlog/checkpoint/TestCheckpointEntryIterator.java
+++ b/plugin/trino-delta-lake/src/test/java/io/trino/plugin/deltalake/transactionlog/checkpoint/TestCheckpointEntryIterator.java
@@ -87,8 +87,8 @@ public void testReadMetadataEntry()
                 .isEqualTo(
                         new MetadataEntry(
                                 "b6aeffad-da73-4dde-b68e-937e468b1fde",
-                                "",
-                                "",
+                                null,
+                                null,
                                 new MetadataEntry.Format("parquet", Map.of()),
                                 "{\"type\":\"struct\",\"fields\":[" +
                                         "{\"name\":\"name\",\"type\":\"string\",\"nullable\":true,\"metadata\":{}}," +