diff --git a/app/src/main/java/com/obs/services/internal/RepeatableRequestEntity.java b/app/src/main/java/com/obs/services/internal/RepeatableRequestEntity.java
index 3bc04aa..8c29b82 100644
--- a/app/src/main/java/com/obs/services/internal/RepeatableRequestEntity.java
+++ b/app/src/main/java/com/obs/services/internal/RepeatableRequestEntity.java
@@ -39,7 +39,7 @@ public class RepeatableRequestEntity extends RequestBody implements Closeable {
 	private volatile long bytesWritten = 0;
 	private InputStream inputStream;
 
-	private static final int writeBufferSize = ObsConstraint.DEFAULT_CHUNK_SIZE;
+	private static final int writeBufferSize = ObsConstraint.DEFAULT_BUFFER_STREAM;
 
 	public RepeatableRequestEntity(InputStream is, String contentType, long contentLength,
 			ObsProperties obsProperties) {