diff --git a/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetFileWriter.java b/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetFileWriter.java
index 20efe47573..f51d9092e4 100644
--- a/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetFileWriter.java
+++ b/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetFileWriter.java
@@ -848,7 +848,7 @@ public void appendRowGroup(SeekableInputStream from, BlockMetaData rowGroup,
     // copy the data for all chunks
     long start = -1;
     long length = 0;
-    long blockCompressedSize = 0;
+    long blockUncompressedSize = 0L;
     for (int i = 0; i < columnsInOrder.size(); i += 1) {
       ColumnChunkMetaData chunk = columnsInOrder.get(i);
 
@@ -889,10 +889,10 @@ public void appendRowGroup(SeekableInputStream from, BlockMetaData rowGroup,
           chunk.getTotalSize(),
           chunk.getTotalUncompressedSize()));
 
-      blockCompressedSize += chunk.getTotalSize();
+      blockUncompressedSize += chunk.getTotalUncompressedSize();
     }
 
-    currentBlock.setTotalByteSize(blockCompressedSize);
+    currentBlock.setTotalByteSize(blockUncompressedSize);
 
     endBlock();
   }