diff --git a/weed/filesys/dirty_page.go b/weed/filesys/dirty_page.go
index 9c059aae0..7a3e859f5 100644
--- a/weed/filesys/dirty_page.go
+++ b/weed/filesys/dirty_page.go
@@ -99,7 +99,7 @@ func (pages *ContinuousDirtyPages) saveExistingLargestPageToStorage() (hasSavedD
 func (pages *ContinuousDirtyPages) saveToStorage(reader io.Reader, offset int64, size int64) {
 
 	if pages.chunkSaveErrChanClosed {
-		pages.chunkSaveErrChan = make(chan error, 8)
+		pages.chunkSaveErrChan = make(chan error, concurrentWriterLimit)
 		pages.chunkSaveErrChanClosed = false
 	}