diff --git a/hibernate-core/src/main/java/org/hibernate/type/descriptor/java/DataHelper.java b/hibernate-core/src/main/java/org/hibernate/type/descriptor/java/DataHelper.java
index 41c7f89b65..9a2fd71989 100644
--- a/hibernate-core/src/main/java/org/hibernate/type/descriptor/java/DataHelper.java
+++ b/hibernate-core/src/main/java/org/hibernate/type/descriptor/java/DataHelper.java
@@ -45,7 +45,7 @@ import org.hibernate.type.descriptor.BinaryStream;
 public class DataHelper {
 
 	/** The size of the buffer we will use to deserialize larger streams */
-	private static final int BUFFER_SIZE = 2048;
+	private static final int BUFFER_SIZE = 1024 * 4;
 
 	private static final CoreMessageLogger LOG = Logger.getMessageLogger( CoreMessageLogger.class, DataHelper.class.getName() );