diff --git a/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml b/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
index ac8bc5a4616..b4f11e72bb0 100644
--- a/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
+++ b/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
@@ -867,7 +867,10 @@
 <property>
   <name>fs.s3a.multipart.threshold</name>
   <value>2147483647</value>
-  <description>Threshold before uploads or copies use parallel multipart operations.</description>
+  <description>How big (in bytes) to split upload or copy operations up into.
+    This also controls the partition size in renamed files, as rename() involves
+    copying the source file(s)
+  </description>
 </property>
 
 <property>
diff --git a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
index 97092ac03d9..87397984f9a 100644
--- a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
+++ b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
@@ -260,6 +260,8 @@ private void initTransferManager() {
     TransferManagerConfiguration transferConfiguration = new TransferManagerConfiguration();
     transferConfiguration.setMinimumUploadPartSize(partSize);
     transferConfiguration.setMultipartUploadThreshold(multiPartThreshold);
+    transferConfiguration.setMultipartCopyPartSize(partSize);
+    transferConfiguration.setMultipartCopyThreshold(multiPartThreshold);
 
     transfers = new TransferManager(s3, threadPoolExecutor);
     transfers.setConfiguration(transferConfiguration);
diff --git a/hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/index.md b/hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/index.md
index e87b8849ffc..2dae7d7ff19 100644
--- a/hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/index.md
+++ b/hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/index.md
@@ -312,7 +312,9 @@ this capability.
     <property>
       <name>fs.s3a.multipart.size</name>
       <value>104857600</value>
-      <description>How big (in bytes) to split upload or copy operations up into.</description>
+      <description>How big (in bytes) to split upload or copy operations up into.
+      This also controls the partition size in renamed files, as rename() involves
+      copying the source file(s)</description>
     </property>
 
     <property>