diff --git a/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortOperatorDescriptor.java b/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortOperatorDescriptor.java
index 6075151..a408d85 100644
--- a/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortOperatorDescriptor.java
+++ b/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortOperatorDescriptor.java
@@ -120,7 +120,6 @@
                 public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
                     if (frameSorter.getFrameCount() >= maxSortFrames) {
                         flushFramesToRun();
-                        frameSorter.reset();
                     }
                     frameSorter.insertFrame(buffer);
                 }
@@ -139,6 +138,7 @@
                 }
 
                 private void flushFramesToRun() throws HyracksDataException {
+                    frameSorter.sortFrames();
                     File runFile;
                     try {
                         runFile = ctx.getResourceManager().createFile(
diff --git a/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/FrameSorter.java b/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/FrameSorter.java
index a4f4999..8a34e45 100644
--- a/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/FrameSorter.java
+++ b/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/FrameSorter.java
@@ -100,7 +100,7 @@
 
     public void sortFrames() {
         FrameTupleAccessor accessor = new FrameTupleAccessor(ctx, recordDescriptor);
-        int nBuffers = buffers.size();
+        int nBuffers = dataFrameCount;
         int totalTCount = 0;
         for (int i = 0; i < nBuffers; ++i) {
             accessor.reset(buffers.get(i));
diff --git a/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/WordCountMain.java b/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/WordCountMain.java
index b255258..f69b9fc 100644
--- a/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/WordCountMain.java
+++ b/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/WordCountMain.java
@@ -147,7 +147,8 @@
             IBinaryComparatorFactory[] cfs = new IBinaryComparatorFactory[] { UTF8StringBinaryComparatorFactory.INSTANCE };
             IOperatorDescriptor sorter = "memsort".equalsIgnoreCase(algo) ? new InMemorySortOperatorDescriptor(spec,
                     keys, new UTF8StringNormalizedKeyComputerFactory(), cfs, wordDesc)
-                    : new ExternalSortOperatorDescriptor(spec, sbSize, keys, cfs, wordDesc);
+                    : new ExternalSortOperatorDescriptor(spec, sbSize, keys,
+                            new UTF8StringNormalizedKeyComputerFactory(), cfs, wordDesc);
             sorter.setPartitionConstraint(createPartitionConstraint(outSplits));
 
             IConnectorDescriptor scanSortConn = new MToNHashPartitioningConnectorDescriptor(spec,