diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedBlockChecksumReconstructor.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedBlockChecksumReconstructor.java
index 944ed9dfd3..9555618990 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedBlockChecksumReconstructor.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedBlockChecksumReconstructor.java
@@ -132,6 +132,7 @@ private long checksumWithTargetOutput(byte[] outputData, int toReconstructLen,
       // case-2) length of data bytes which is less than bytesPerCRC
       if (partialLength > 0) {
         byte[] partialCrc = new byte[getChecksum().getChecksumSize()];
+        getChecksum().reset();
         getChecksum().update(outputData, dataOffset, partialLength);
         getChecksum().writeValue(partialCrc, 0, true);
         digester.update(partialCrc);