diff --git a/common/rfb/Configuration.h b/common/rfb/Configuration.h
index 276651d..35e31fc 100644
--- a/common/rfb/Configuration.h
+++ b/common/rfb/Configuration.h
@@ -241,6 +241,7 @@
     virtual char* getDefaultStr() const;
     virtual char* getValueStr() const;
     void setDefaultStr(const char* v);
+    operator const char*() const;
 
     // getData() returns a copy of the data - it must be delete[]d by the
     // caller.