--- a/qmlfrontend/gameconfig.h	Sun Dec 24 16:56:22 2017 +0100
+++ b/qmlfrontend/gameconfig.h	Mon Dec 25 00:58:47 2017 +0100
@@ -10,7 +10,7 @@
 
     const char** argv() const;
     int argc() const;
-    const QList<QByteArray> config();
+    const QList<QByteArray> config() const;
 
     void clear();
     void cmdSeed(const QByteArray& seed);