diff --git a/pulsar-transaction/coordinator/src/main/java/org/apache/pulsar/transaction/coordinator/impl/MLTransactionMetadataStoreProvider.java b/pulsar-transaction/coordinator/src/main/java/org/apache/pulsar/transaction/coordinator/impl/MLTransactionMetadataStoreProvider.java
index 80f8927b682327..f774b8ee4350d9 100644
--- a/pulsar-transaction/coordinator/src/main/java/org/apache/pulsar/transaction/coordinator/impl/MLTransactionMetadataStoreProvider.java
+++ b/pulsar-transaction/coordinator/src/main/java/org/apache/pulsar/transaction/coordinator/impl/MLTransactionMetadataStoreProvider.java
@@ -38,7 +38,7 @@ public class MLTransactionMetadataStoreProvider implements TransactionMetadataSt
 
     private static final Logger log = LoggerFactory.getLogger(MLTransactionMetadataStoreProvider.class);
 
-    private static TxnLogBufferedWriterMetricsStats bufferedWriterMetrics =
+    private volatile static TxnLogBufferedWriterMetricsStats bufferedWriterMetrics =
             DisabledTxnLogBufferedWriterMetricsStats.DISABLED_BUFFERED_WRITER_METRICS;
 
     public static void initBufferedWriterMetrics(String brokerAdvertisedAddress){