diff --git a/broadcastradio/1.1/default/VirtualRadio.h b/broadcastradio/1.1/default/VirtualRadio.h
index 23cb06c..4cdc72f 100644
--- a/broadcastradio/1.1/default/VirtualRadio.h
+++ b/broadcastradio/1.1/default/VirtualRadio.h
@@ -30,7 +30,7 @@
 class VirtualRadio {
    public:
     VirtualRadio(VirtualRadio&& o);
-    VirtualRadio(std::vector<VirtualProgram> initialList);
+    VirtualRadio(const std::vector<VirtualProgram> initialList);
 
     std::vector<VirtualProgram> getProgramList();
     bool getProgram(const ProgramSelector& selector, VirtualProgram& program);