diff --git a/3rdparty/o2/src/o2facebook.h b/3rdparty/o2/src/o2facebook.h
new file mode 100644
index 0000000000000000000000000000000000000000..289942c8f631d065c75f993a52d621cbe850fb8f
--- /dev/null
+++ b/3rdparty/o2/src/o2facebook.h
@@ -0,0 +1,21 @@
+#ifndef O2FACEBOOK_H
+#define O2FACEBOOK_H
+
+#include "o2.h"
+
+/// Facebook's dialect of OAuth 2.0
+class O2Facebook: public O2 {
+    Q_OBJECT
+
+public:
+    explicit O2Facebook(QObject *parent = 0);
+
+public slots:
+    Q_INVOKABLE void unlink();
+
+protected slots:
+    void onVerificationReceived(QMap<QString, QString>);
+    virtual void onTokenReplyFinished();
+};
+
+#endif // O2FACEBOOK_H