diff --git a/kafka_server/broker/file/read.py b/kafka_server/broker/file/read.py
index fbc87fc..603369d 100644
--- a/kafka_server/broker/file/read.py
+++ b/kafka_server/broker/file/read.py
@@ -22,11 +22,13 @@ class Read:
     _instance = None
 
     def __new__(cls, partition: str, replica: str):
-        if cls._instance is None or (cls._instance.replica is None and replica is not None):
+        if cls._instance is None:
             with cls._instances_lock:
                 if cls._instance is None:
                     cls._instance = super().__new__(cls)
                     cls._instance.replica = replica
+        if replica is not None and cls._instance.replica is None:
+            cls._instance.segment = Segment(partition, replica)
         return cls._instance
 
     def __init__(self, partition: str, replica: str):
diff --git a/kafka_server/broker/file/segment.py b/kafka_server/broker/file/segment.py
index 1b1bec9..65ceb2f 100644
--- a/kafka_server/broker/file/segment.py
+++ b/kafka_server/broker/file/segment.py
@@ -18,11 +18,15 @@ class Segment:
 
     def __new__(cls, partition: str, replica: str):
         with cls._instances_lock:
-            if partition not in cls._instances or (cls._instances[partition].replica is None and replica is not None):
+            if partition not in cls._instances:
                 cls._instances[partition] = super(Segment, cls).__new__(cls)
                 cls._instances[partition].partition = partition
                 cls._instances[partition].indexer = Indexer(partition, replica)
                 cls._instances[partition].replica = replica
+
+            if replica is not None and cls._instances[partition].replica is None:
+                cls._instances[partition].indexer = Indexer(partition, replica)
+
             return cls._instances[partition]
 
     def append(self, key: str, value: str):