1 files changed, 2 insertions, 0 deletions

diff --git a/c++-qt/src/boolean.h b/c++-qt/src/boolean.h
index 4eec690..d707e4d 100644
--- a/c++-qt/src/boolean.h
+++ b/c++-qt/src/boolean.h
@@ -15,6 +15,8 @@ namespace Gats
                 Boolean( bool bVal );
                 virtual ~Boolean();
 
+                virtual Object *clone() const;
+
                 virtual Type getType() const { return typeBoolean; }
                 bool getValue() const { return bVal; }
                 void setValue( bool b ) { bVal = b; }