diff --git a/src/cramFile/slice/decodeRecord.ts b/src/cramFile/slice/decodeRecord.ts
index 1296e3eb..2a0d8b34 100644
--- a/src/cramFile/slice/decodeRecord.ts
+++ b/src/cramFile/slice/decodeRecord.ts
@@ -32,7 +32,10 @@ function readNullTerminatedString(buffer: Uint8Array) {
  */
 function parseTagValueArray(buffer: Uint8Array) {
   const arrayType = String.fromCharCode(buffer[0]!)
-  const length = Int32Array.from(buffer.slice(1))[0]!
+
+  const dataView = new DataView(buffer.buffer)
+  const littleEndian = true
+  const length = dataView.getUint32(1, littleEndian)
 
   const array: number[] = new Array(length)
   buffer = buffer.slice(5)