  In this paper, we study the dynamical system analysis for a recently proposed
decaying dark energy model, namely, Q-SC-CDM. First we investigate the
stationary points to find the stable attractor solution under the conditions
discussed recently in the literature. In this case, we do not find any stable
attractor solution. Therefore, we avoid the parameter space of Q-SC-CDM model
discussed in arXiv:2201.07704. Second, we make different choice for the model
parameters and re-investigate the stationary points and their stability. Our
analysis shows that a simple choice of model parameters allows to capture a
stable attractor solution. Moreover, we obtain phase portrait where all
trajectories move towards the stable attractor point.
