diff --git a/paimon-core/src/main/java/org/apache/paimon/table/FallbackReadFileStoreTable.java b/paimon-core/src/main/java/org/apache/paimon/table/FallbackReadFileStoreTable.java
index 1e9a17ca5861..f1a60b9713f9 100644
--- a/paimon-core/src/main/java/org/apache/paimon/table/FallbackReadFileStoreTable.java
+++ b/paimon-core/src/main/java/org/apache/paimon/table/FallbackReadFileStoreTable.java
@@ -305,7 +305,8 @@ public TableScan.Plan plan() {
 
         @Override
         public List<PartitionEntry> listPartitionEntries() {
-            List<PartitionEntry> partitionEntries = mainScan.listPartitionEntries();
+            List<PartitionEntry> partitionEntries =
+                    new ArrayList<>(mainScan.listPartitionEntries());
             Set<BinaryRow> partitions =
                     partitionEntries.stream()
                             .map(PartitionEntry::partition)