diff --git a/src/plugins/qmlprojectmanager/fileformat/qmlprojectfileformat.cpp b/src/plugins/qmlprojectmanager/fileformat/qmlprojectfileformat.cpp
index d12aa87be75..962b4034925 100644
--- a/src/plugins/qmlprojectmanager/fileformat/qmlprojectfileformat.cpp
+++ b/src/plugins/qmlprojectmanager/fileformat/qmlprojectfileformat.cpp
@@ -103,6 +103,10 @@ QmlProjectItem *QmlProjectFileFormat::parseProjectFile(const Utils::FilePath &fi
         if (languagesProperty.isValid())
             projectItem->setSupportedLanguages(languagesProperty.value.toStringList());
 
+        const auto primaryLanguageProperty = rootNode->property(QLatin1String("primaryLanguage"));
+        if (primaryLanguageProperty.isValid())
+            projectItem->setPrimaryLanguage(primaryLanguageProperty.value.toString());
+
         const auto forceFreeTypeProperty = rootNode->property("forceFreeType");
         if (forceFreeTypeProperty.isValid())
             projectItem->setForceFreeType(forceFreeTypeProperty.value.toBool());
diff --git a/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.cpp b/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.cpp
index 3815db6f102..249474a224f 100644
--- a/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.cpp
+++ b/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.cpp
@@ -83,6 +83,12 @@ void QmlProjectItem::setSupportedLanguages(const QStringList &languages)
         m_supportedLanguages = languages;
 }
 
+void QmlProjectItem::setPrimaryLanguage(const QString &language)
+{
+    if (m_primaryLanguage != language)
+        m_primaryLanguage = language;
+}
+
 /* Returns list of absolute paths */
 QStringList QmlProjectItem::files() const
 {
diff --git a/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.h b/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.h
index b234117aa0d..90d17e48591 100644
--- a/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.h
+++ b/src/plugins/qmlprojectmanager/fileformat/qmlprojectitem.h
@@ -66,6 +66,9 @@ public:
     QStringList supportedLanguages() const { return m_supportedLanguages; }
     void setSupportedLanguages(const QStringList &languages);
 
+    QString primaryLanguage() const { return m_primaryLanguage; }
+    void setPrimaryLanguage(const QString &language);
+
     QStringList files() const;
     bool matchesFile(const QString &filePath) const;
 
@@ -89,6 +92,7 @@ protected:
     QStringList m_importPaths;
     QStringList m_fileSelectors;
     QStringList m_supportedLanguages;
+    QString m_primaryLanguage;
     QString m_mainFile;
     Utils::EnvironmentItems m_environment;
     QVector<QmlProjectContentItem *> m_content; // content property
diff --git a/src/plugins/qmlprojectmanager/qmlmultilanguageaspect.cpp b/src/plugins/qmlprojectmanager/qmlmultilanguageaspect.cpp
index dc8940844b3..662e904974f 100644
--- a/src/plugins/qmlprojectmanager/qmlmultilanguageaspect.cpp
+++ b/src/plugins/qmlprojectmanager/qmlmultilanguageaspect.cpp
@@ -46,8 +46,7 @@ static bool isMultilanguagePresent()
 static Utils::FilePath getMultilanguageDatabaseFilePath(ProjectExplorer::Target *target)
 {
     if (target) {
-        auto filePath = target->project()->projectDirectory().pathAppended(
-            "multilanguage-experimental-v6.db");
+        auto filePath = target->project()->projectDirectory().pathAppended("translations.db");
         if (filePath.exists())
             return filePath;
     }
diff --git a/src/plugins/qmlprojectmanager/qmlproject.cpp b/src/plugins/qmlprojectmanager/qmlproject.cpp
index 76c405bfb60..876fa4e1882 100644
--- a/src/plugins/qmlprojectmanager/qmlproject.cpp
+++ b/src/plugins/qmlprojectmanager/qmlproject.cpp
@@ -347,6 +347,13 @@ QStringList QmlBuildSystem::supportedLanguages() const
     return {};
 }
 
+QString QmlBuildSystem::primaryLanguage() const
+{
+    if (m_projectItem)
+        return m_projectItem.data()->primaryLanguage();
+    return {};
+}
+
 void QmlBuildSystem::refreshProjectFile()
 {
     refresh(QmlBuildSystem::ProjectFile | Files);
@@ -518,6 +525,8 @@ QVariant QmlBuildSystem::additionalData(Id id) const
         return customFileSelectors();
     if (id == Constants::supportedLanguagesData)
         return supportedLanguages();
+    if (id == Constants::primaryLanguageData)
+        return primaryLanguage();
     if (id == Constants::customForceFreeTypeData)
         return forceFreeType();
     if (id == Constants::customQtForMCUs)
diff --git a/src/plugins/qmlprojectmanager/qmlproject.h b/src/plugins/qmlprojectmanager/qmlproject.h
index f6f2b54f2d3..64c0cc90ecb 100644
--- a/src/plugins/qmlprojectmanager/qmlproject.h
+++ b/src/plugins/qmlprojectmanager/qmlproject.h
@@ -89,6 +89,7 @@ public:
     QStringList customImportPaths() const;
     QStringList customFileSelectors() const;
     QStringList supportedLanguages() const;
+    QString primaryLanguage() const;
     bool forceFreeType() const;
 
     bool addFiles(const QStringList &filePaths);
diff --git a/src/plugins/qmlprojectmanager/qmlprojectconstants.h b/src/plugins/qmlprojectmanager/qmlprojectconstants.h
index beb5cde0160..184469f2430 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectconstants.h
+++ b/src/plugins/qmlprojectmanager/qmlprojectconstants.h
@@ -33,6 +33,7 @@ namespace Constants {
 const char * const QMLPROJECT_MIMETYPE = QmlJSTools::Constants::QMLPROJECT_MIMETYPE;
 const char customFileSelectorsData[] = "CustomFileSelectorsData";
 const char supportedLanguagesData[] = "SupportedLanguagesData";
+const char primaryLanguageData[] = "PrimaryLanguageData";
 const char customForceFreeTypeData[] = "CustomForceFreeType";
 const char customQtForMCUs[] = "CustomQtForMCUs";
 const char customQt6Project[] = "CustomQt6Project";