diff --git a/cassandra-five-zero-bridge/src/main/java/org/apache/cassandra/bridge/CdcBridgeImplementation.java b/cassandra-five-zero-bridge/src/main/java/org/apache/cassandra/bridge/CdcBridgeImplementation.java
index 6062f8cc2..cfcea225b 100644
--- a/cassandra-five-zero-bridge/src/main/java/org/apache/cassandra/bridge/CdcBridgeImplementation.java
+++ b/cassandra-five-zero-bridge/src/main/java/org/apache/cassandra/bridge/CdcBridgeImplementation.java
@@ -67,7 +67,7 @@ protected static synchronized void setCDC(Path path, int commitLogSegmentSize, b
         DatabaseDescriptor.setCommitLogSyncGroupWindow(30);
         DatabaseDescriptor.setCommitLogSegmentSize(commitLogSegmentSize);
         DatabaseDescriptor.getRawConfig().commitlog_total_space = new DataStorageSpec.IntMebibytesBound(1024);
-        DatabaseDescriptor.setCommitLogWriteDiskAccessMode(Config.DiskAccessMode.direct);
+        DatabaseDescriptor.setCommitLogWriteDiskAccessMode(Config.DiskAccessMode.mmap);
         DatabaseDescriptor.setCDCTotalSpaceInMiB(1024);
         DatabaseDescriptor.setCommitLogSegmentMgrProvider((commitLog -> new CommitLogSegmentManagerCDC(commitLog, commitLogPath.toString())));
         setup = true;