diff --git a/src/main/java/com/aliyun/oss/internal/OSSObjectOperation.java b/src/main/java/com/aliyun/oss/internal/OSSObjectOperation.java
index 33dcac54..fef31a2b 100644
--- a/src/main/java/com/aliyun/oss/internal/OSSObjectOperation.java
+++ b/src/main/java/com/aliyun/oss/internal/OSSObjectOperation.java
@@ -786,6 +786,7 @@ private <RequestType extends PutObjectRequest, ResponseType> ResponseType writeO
             }
 
             try {
+                metadata.setContentLength((long) originalInputStream.available());
                 repeatableInputStream = newRepeatableInputStream(originalInputStream);
             } catch (IOException ex) {
                 logException("Cannot wrap to repeatable input stream: ", ex);