diff --git a/AdvectionDiffusion/AdvectionDiffusion.h b/AdvectionDiffusion/AdvectionDiffusion.h
index 21cf5e1..bcc3055 100644
--- a/AdvectionDiffusion/AdvectionDiffusion.h
+++ b/AdvectionDiffusion/AdvectionDiffusion.h
@@ -223,9 +223,6 @@ class AdvectionDiffusion : public IntegrandBase
   //! \param[in] asol Pointer to analytical solution (optional)
   NormBase* getNormIntegrand(AnaSol* asol) const override;
 
-  //! \brief Advances the integrand one time step forward.
-  virtual void advanceStep() {}
-
   //! \brief Returns a reference to the fluid properties.
   AD::FluidProperties& getFluidProperties() { return props; }
   //! \brief Returns a const reference to the fluid properties.
diff --git a/AdvectionDiffusion/AdvectionDiffusionBDF.h b/AdvectionDiffusion/AdvectionDiffusionBDF.h
index 92917a0..dfff5c1 100644
--- a/AdvectionDiffusion/AdvectionDiffusionBDF.h
+++ b/AdvectionDiffusion/AdvectionDiffusionBDF.h
@@ -67,7 +67,7 @@ class AdvectionDiffusionBDF : public AdvectionDiffusion
   }
 
   //! \brief Advances the time stepping scheme.
-  void advanceStep() override { bdf.advanceStep(); }
+  bool advanceStep() override { return bdf.advanceStep(); }
 
   //! \brief Returns a pointer to an Integrand for solution norm evaluation.
   //! \note The Integrand object is allocated dynamically and has to be deleted