diff --git a/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/delta/BinaryLongDecimalDeltaValuesDecoder.java b/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/delta/BinaryLongDecimalDeltaValuesDecoder.java
index 676ca0fadcebd..fb08cd047e0cc 100644
--- a/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/delta/BinaryLongDecimalDeltaValuesDecoder.java
+++ b/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/delta/BinaryLongDecimalDeltaValuesDecoder.java
@@ -49,7 +49,7 @@ public void readNext(long[] values, int offset, int length)
         BinaryValuesDecoder.ValueBuffer valueBuffer = delegate.readNext(length);
         int bufferSize = valueBuffer.getBufferSize();
         byte[] byteBuffer = new byte[bufferSize];
-        int[] offsets = new int[bufferSize + 1];
+        int[] offsets = new int[length + 1];
         delegate.readIntoBuffer(byteBuffer, 0, offsets, 0, valueBuffer);
 
         for (int i = 0; i < length; i++) {
diff --git a/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/plain/BinaryLongDecimalPlainValuesDecoder.java b/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/plain/BinaryLongDecimalPlainValuesDecoder.java
index 81f86f376c42e..4af38a23018c5 100644
--- a/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/plain/BinaryLongDecimalPlainValuesDecoder.java
+++ b/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/plain/BinaryLongDecimalPlainValuesDecoder.java
@@ -45,7 +45,7 @@ public void readNext(long[] values, int offset, int length)
         PlainValueBuffer valueBuffer = (PlainValueBuffer) delegate.readNext(length);
         int bufferSize = valueBuffer.getBufferSize();
         byte[] byteBuffer = new byte[bufferSize];
-        int[] offsets = new int[bufferSize + 1];
+        int[] offsets = new int[length + 1];
         delegate.readIntoBuffer(byteBuffer, 0, offsets, 0, valueBuffer);
 
         for (int i = 0; i < length; i++) {
diff --git a/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/rle/LongDecimalRLEDictionaryValuesDecoder.java b/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/rle/LongDecimalRLEDictionaryValuesDecoder.java
index b130aa416719d..05ced8bc80107 100644
--- a/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/rle/LongDecimalRLEDictionaryValuesDecoder.java
+++ b/presto-parquet/src/main/java/com/facebook/presto/parquet/batchreader/decoders/rle/LongDecimalRLEDictionaryValuesDecoder.java
@@ -46,7 +46,7 @@ public void readNext(long[] values, int offset, int length)
         ValueBuffer valueBuffer = delegate.readNext(length);
         int bufferSize = valueBuffer.getBufferSize();
         byte[] byteBuffer = new byte[bufferSize];
-        int[] offsets = new int[bufferSize + 1];
+        int[] offsets = new int[length + 1];
         delegate.readIntoBuffer(byteBuffer, 0, offsets, 0, valueBuffer);
 
         for (int i = 0; i < length; i++) {