diff --git a/jdk/src/share/classes/sun/net/www/http/ChunkedOutputStream.java b/jdk/src/share/classes/sun/net/www/http/ChunkedOutputStream.java
index 96f5d8d3ae7..fc23ac683be 100644
--- a/jdk/src/share/classes/sun/net/www/http/ChunkedOutputStream.java
+++ b/jdk/src/share/classes/sun/net/www/http/ChunkedOutputStream.java
@@ -125,7 +125,7 @@ public class ChunkedOutputStream extends PrintStream {
         completeHeader = getHeader(preferredChunkDataSize);
 
         /* start with an initial buffer */
-        buf = new byte[preferredChunkDataSize + 32];
+        buf = new byte[preferredChunkGrossSize];
         reset();
     }