diff --git a/src/constraint_solver/constraint_solver.h b/src/constraint_solver/constraint_solver.h
index e0b16eadc7..411f26d5a1 100644
--- a/src/constraint_solver/constraint_solver.h
+++ b/src/constraint_solver/constraint_solver.h
@@ -5012,10 +5012,12 @@ class DisjunctiveConstraint : public Constraint {
     }
   }
 
+#if !defined(SWIG)
   virtual const std::vector<IntVar*>& nexts() const = 0;
   virtual const std::vector<IntVar*>& actives() const = 0;
   virtual const std::vector<IntVar*>& time_cumuls() const = 0;
   virtual const std::vector<IntVar*>& time_slacks() const = 0;
+#endif
 
  protected:
   const std::vector<IntervalVar*> intervals_;