diff --git a/libs/fastfile/Wii/fastfile_cod7_wii.cpp b/libs/fastfile/Wii/fastfile_cod7_wii.cpp
index 610307e..50a31e0 100644
--- a/libs/fastfile/Wii/fastfile_cod7_wii.cpp
+++ b/libs/fastfile/Wii/fastfile_cod7_wii.cpp
@@ -69,9 +69,9 @@ bool FastFile_COD7_Wii::Load(const QString aFilePath) {
 bool FastFile_COD7_Wii::Load(const QByteArray aData) {
     QByteArray decompressedData;
 
-    // Create a QDataStream on the input data.
-    QDataStream fastFileStream(aData);
-    fastFileStream.setByteOrder(QDataStream::LittleEndian);
+    // Create a XDataStream on the input data.
+    XDataStream fastFileStream(aData);
+    fastFileStream.setByteOrder(XDataStream::LittleEndian);
 
     // Parse header values.
     SetCompany(pParseFFCompany(&fastFileStream));
@@ -84,7 +84,7 @@ bool FastFile_COD7_Wii::Load(const QByteArray aData) {
     SetGame("COD7");
 
     // For COD7/COD9, use BigEndian.
-    fastFileStream.setByteOrder(QDataStream::BigEndian);
+    fastFileStream.setByteOrder(XDataStream::BigEndian);
 
     // For COD7, simply decompress from offset 12.
     decompressedData = Compression::DecompressZLIB(aData.mid(12));