diff --git a/src/visitor.h b/src/visitor.h
index 4763aa5b..c847a049 100644
--- a/src/visitor.h
+++ b/src/visitor.h
@@ -53,7 +53,7 @@ public:
 		return visit(state, (const class AbstractNode &)node);
 	}
   virtual Response visit(class State &state, const class OffsetNode &node) {
-		return visit(state, (const class AbstractNode &)node);
+		return visit(state, (const class AbstractPolyNode &)node);
 	}
 	// Add visit() methods for new visitable subtypes of AbstractNode here
 };