diff --git a/lib/exprengine.h b/lib/exprengine.h
index 0a27db0de..10fb6ced0 100644
--- a/lib/exprengine.h
+++ b/lib/exprengine.h
@@ -290,7 +290,10 @@ namespace ExprEngine {
     class BailoutValue : public Value {
     public:
         BailoutValue() : Value("bailout", ValueType::BailoutValue) {}
-        bool isEqual(DataBase * /*dataBase*/, int /*value*/) const {
+        bool isEqual(DataBase * /*dataBase*/, int /*value*/) const OVERRIDE {
+            return true;
+        }
+        bool isUninit() const OVERRIDE {
             return true;
         }
     };