diff --git a/src/plugins/qmlprojectmanager/qmlproject.cpp b/src/plugins/qmlprojectmanager/qmlproject.cpp
index 876fa4e1882..0dc6f5c5a18 100644
--- a/src/plugins/qmlprojectmanager/qmlproject.cpp
+++ b/src/plugins/qmlprojectmanager/qmlproject.cpp
@@ -347,6 +347,12 @@ QStringList QmlBuildSystem::supportedLanguages() const
     return {};
 }
 
+void QmlBuildSystem::setSupportedLanguages(QStringList languages)
+{
+    if (m_projectItem)
+        m_projectItem.data()->setSupportedLanguages(languages);
+}
+
 QString QmlBuildSystem::primaryLanguage() const
 {
     if (m_projectItem)
@@ -354,6 +360,12 @@ QString QmlBuildSystem::primaryLanguage() const
     return {};
 }
 
+void QmlBuildSystem::setPrimaryLanguage(QString language)
+{
+    if (m_projectItem)
+        m_projectItem.data()->setPrimaryLanguage(language);
+}
+
 void QmlBuildSystem::refreshProjectFile()
 {
     refresh(QmlBuildSystem::ProjectFile | Files);
diff --git a/src/plugins/qmlprojectmanager/qmlproject.h b/src/plugins/qmlprojectmanager/qmlproject.h
index 64c0cc90ecb..4f347d07e1d 100644
--- a/src/plugins/qmlprojectmanager/qmlproject.h
+++ b/src/plugins/qmlprojectmanager/qmlproject.h
@@ -89,7 +89,9 @@ public:
     QStringList customImportPaths() const;
     QStringList customFileSelectors() const;
     QStringList supportedLanguages() const;
+    void setSupportedLanguages(QStringList languages);
     QString primaryLanguage() const;
+    void setPrimaryLanguage(QString language);
     bool forceFreeType() const;
 
     bool addFiles(const QStringList &filePaths);