diff --git a/package.json b/package.json
index fc01e53a3..92f59a344 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,6 @@
   "jest": {
     "collectCoverage": true,
     "moduleNameMapper": {
-      "^.": "./src",
       "^(@vates/[^/]+)": "$1/src",
       "^(@xen-orchestra/[^/]+)": "$1/src",
       "^(value-matcher)": "$1/src",
diff --git a/packages/xo-vmdk-to-vhd/src/ova.integ.spec.js b/packages/xo-vmdk-to-vhd/src/ova.integ.spec.js
index ee79f2244..010a52c8e 100644
--- a/packages/xo-vmdk-to-vhd/src/ova.integ.spec.js
+++ b/packages/xo-vmdk-to-vhd/src/ova.integ.spec.js
@@ -74,11 +74,19 @@ test('An ova file is parsed correctly', async () => {
   expect(data).toEqual(expectedResult)
 })
 
+function arrayToBuffer(array) {
+  const output = new DataView(new ArrayBuffer(array.length * 4))
+  array.forEach((e, i) => {
+    output.setUint32(i * 4, e, true)
+  })
+  return output.buffer
+}
+
 const expectedResult = {
   tables: {
     [vmdkFileName]: {
-      grainFileOffsetList: [65536, 115712],
-      grainLogicalAddressList: [0, 65536],
+      grainFileOffsetList: arrayToBuffer([65536, 115712]),
+      grainLogicalAddressList: arrayToBuffer([0, 65536]),
     },
   },
   disks: {
diff --git a/packages/xo-vmdk-to-vhd/src/vmdk-read.integ.spec.js b/packages/xo-vmdk-to-vhd/src/vmdk-read.integ.spec.js
index d6c5d8978..6244703bd 100644
--- a/packages/xo-vmdk-to-vhd/src/vmdk-read.integ.spec.js
+++ b/packages/xo-vmdk-to-vhd/src/vmdk-read.integ.spec.js
@@ -25,6 +25,15 @@ function createFileAccessor(file) {
   }
 }
 
+function bufferToArray(buffer) {
+  const view = new DataView(buffer)
+  const res = []
+  for (let i = 0; i < buffer.byteLength; i += 4) {
+    res.push(view.getUint32(i, true))
+  }
+  return res
+}
+
 jest.setTimeout(10000)
 
 const initialDir = process.cwd()
@@ -48,8 +57,8 @@ test('VMDKDirectParser reads OK', async () => {
   const data = await readVmdkGrainTable(createFileAccessor(fileName))
   const parser = new VMDKDirectParser(
     createReadStream(fileName),
-    data.grainLogicalAddressList,
-    data.grainFileOffsetList
+    bufferToArray(data.grainLogicalAddressList),
+    bufferToArray(data.grainFileOffsetList)
   )
   const header = await parser.readHeader()
   const harvested = []