diff --git a/NEWS.md b/NEWS.md
index 640bb224..fd871abf 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -7,6 +7,7 @@ Red Panda C++ Version 2.9
   - enhancement: Create a temporary copy of the current file when saving files (it's removed after the saving sucessfully finished).
   - enhancement: Auto backup editing contents. (Save editing contents 3 seconds after input stopped. Auto delete when editor successfully closed)
   - enhancement: Add "Auto backup editing contents" option in options/editor/auto save
+  - fix: rename project file will wrongly set it's encoding to 'ASCII';
 
 Red Panda C++ Version 2.8
 
diff --git a/RedPandaIDE/project.cpp b/RedPandaIDE/project.cpp
index 85750f05..ddd8a9ec 100644
--- a/RedPandaIDE/project.cpp
+++ b/RedPandaIDE/project.cpp
@@ -1219,7 +1219,7 @@ PProjectUnit Project::internalAddUnit(const QString &inFileName, PProjectModelNo
     newUnit->setFileName(QDir(directory()).filePath(inFileName));
     Editor * e= unitEditor(newUnit);
     if (e) {
-        newUnit->setEncoding(e->fileEncoding());
+        newUnit->setEncoding(e->encodingOption());
         e->setProject(this);
     } else {
         newUnit->setEncoding(options().encoding.toUtf8());
diff --git a/libs/redpanda_qt_utils/qt_utils/utils.cpp b/libs/redpanda_qt_utils/qt_utils/utils.cpp
index 0ce6faee..878ec41a 100644
--- a/libs/redpanda_qt_utils/qt_utils/utils.cpp
+++ b/libs/redpanda_qt_utils/qt_utils/utils.cpp
@@ -395,7 +395,7 @@ bool stringToFile(const QString &str, const QString &fileName)
 bool stringsToFile(const QStringList &list, const QString &fileName)
 {
     QFile file(fileName);
-    if (file.open(QIODevice::WriteOnly | QIODevice::Truncate))
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Truncate))
         return false;
     QTextStream stream(&file);
     for (const QString& s:list) {