diff --git a/hbase-spark/src/main/scala/org/apache/hadoop/hbase/spark/DefaultSource.scala b/hbase-spark/src/main/scala/org/apache/hadoop/hbase/spark/DefaultSource.scala
index 8d94a79f00f..b04abd869e3 100644
--- a/hbase-spark/src/main/scala/org/apache/hadoop/hbase/spark/DefaultSource.scala
+++ b/hbase-spark/src/main/scala/org/apache/hadoop/hbase/spark/DefaultSource.scala
@@ -276,7 +276,11 @@ case class HBaseRelation (
         (x, null)
       } else {
         val v = CellUtil.cloneValue(kv)
-        (x, Utils.hbaseFieldToScalaType(x, v, 0, v.length))
+        (x, x.dt match {
+          // Here, to avoid arraycopy, return v directly instead of calling hbaseFieldToScalaType
+          case BinaryType => v
+          case _ => Utils.hbaseFieldToScalaType(x, v, 0, v.length)
+        })
       }
     }.toMap
     val unionedRow = keySeq ++ valueSeq