diff --git a/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoin.java b/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoin.java
index e92d787..3e0b3ea 100644
--- a/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoin.java
+++ b/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoin.java
@@ -64,7 +64,6 @@
 
     public void cache(ByteBuffer buffer) throws HyracksDataException {
         runFileWriter.nextFrame(buffer);
-        System.out.println(runFileWriter.getFileSize());
     }
 
     public void join(ByteBuffer outerBuffer, IFrameWriter writer) throws HyracksDataException {
diff --git a/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoinOperatorDescriptor.java b/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoinOperatorDescriptor.java
index 5b5ace1..9e69e4b 100644
--- a/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoinOperatorDescriptor.java
+++ b/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoinOperatorDescriptor.java
@@ -92,7 +92,7 @@
                 public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
                     ByteBuffer copyBuffer = ctx.allocateFrame();
                     FrameUtils.copy(buffer, copyBuffer);
-                    copyBuffer.flip();
+                    FrameUtils.makeReadable(copyBuffer);
                     joiner.cache(copyBuffer);
                 }
 
@@ -150,4 +150,4 @@
             return op;
         }
     }
-}
+}
\ No newline at end of file