Up to now, the ALEPH limits on the MSSM neutral Higgs boson masses have been reported for specific sets of model parameters corresponding to the so-called minimal and maximal mixing configurations. An investigation of the robustness of these results is performed by means of a scan of the parameter space in which more than 30 million sets of m_0, m_1/2, mu, A_t, m_A and tan(beta) values are probed. In the low tan(beta) regime, the m_h limit obtained in the cases of minimal and maximal mixing is found to remain valid for 99.991341f the parameter sets explored. In the case of large tan(beta), and considering the limit on m_h + m_A, this fraction reduces to 99.
