diff --git a/core/src/main/scala/org/apache/spark/storage/BlockManager.scala b/core/src/main/scala/org/apache/spark/storage/BlockManager.scala
index 3f5d06e1aeee7257129e3376043aa19ae3f10021..0ce2a3f631b157bb301fa7400be62103992a964d 100644
--- a/core/src/main/scala/org/apache/spark/storage/BlockManager.scala
+++ b/core/src/main/scala/org/apache/spark/storage/BlockManager.scala
@@ -870,7 +870,7 @@ private[spark] class BlockManager(
             logTrace(s"Trying to replicate $blockId of ${data.limit()} bytes to $peer")
             blockTransferService.uploadBlockSync(
               peer.host, peer.port, blockId.toString, new NioByteBufferManagedBuffer(data), tLevel)
-            logTrace(s"Replicated $blockId of ${data.limit()} bytes to $peer in %f ms"
+            logTrace(s"Replicated $blockId of ${data.limit()} bytes to $peer in %d ms"
               .format((System.currentTimeMillis - onePeerStartTime)))
             peersReplicatedTo += peer
             peersForReplication -= peer