  In the paper [F. Nasseri, Phys. Lett. B 632 (2006) 151--154], F. Nasseri
supposed that the value of the angular momentum for the Bohr's atom in the
presence of the cosmic string is quantized in units of &#8463;. Using this
assumption it was obtained an incorrect expression for Bohr radius in this
scenario. In this comment I want to point out that this assumption is not
correct and present a corrected expression for the Bohr radius in this
background.
