diff --git a/src/libs/utils/textfileformat.cpp b/src/libs/utils/textfileformat.cpp
index afd4e62e830..ea682edae95 100644
--- a/src/libs/utils/textfileformat.cpp
+++ b/src/libs/utils/textfileformat.cpp
@@ -302,14 +302,11 @@ bool TextFileFormat::writeFile(const QString &fileName, QString plainText, QStri
     QTC_ASSERT(codec, return false);
 
     // Does the user want CRLF? If that is native,
-    // let QFile do the work, else manually add.
+    // do net let QFile do the work, because it replaces the line ending after the text was encoded,
+    // and this could lead to undecodable file contents.
     QIODevice::OpenMode fileMode = QIODevice::NotOpen;
-    if (lineTerminationMode == CRLFLineTerminator) {
-        if (NativeLineTerminator == CRLFLineTerminator)
-            fileMode |= QIODevice::Text;
-        else
-            plainText.replace(QLatin1Char('\n'), QLatin1String("\r\n"));
-    }
+    if (lineTerminationMode == CRLFLineTerminator)
+        plainText.replace(QLatin1Char('\n'), QLatin1String("\r\n"));
 
     FileSaver saver(fileName, fileMode);
     if (!saver.hasError()) {