Solar still has been proposed as a potential solution to tap potable water from the brackish water in recent times. The absorber of the solar still is playing a pivotal role on the performance of the solar still. This paper presents the outcome of an experimental work, which was carried to improve the performance of a conventional solar still by coating its absorber with a nano-doped black paint (NDBP). Two solar stills with similar dimensions were used in this work. One solar still was fabricated by coating the black paint on the absorber and labelled as conventional still with black paint (CS-BP). The second still was fabricated by coating the absorber with nano-doped black paint and labelled as conventional still with nano-doped black paint (CS-NDBP). The experiments were conducted on two consecutive days by maintaining 15 mm and 25 mm water depths in both solar stills, respectively. Before hand, nano-SiO₂ particles (0.5% mass) were thoroughly mixed with the black paint for fabricating CS-NDBP. The results provided the evidence that the yield of the solar still was augmented by 8.78% and 7.83% for 15 mm and 25 mm water depths, respectively, with the coating of NDBP as compared to the plain black paint.