Although the structure rerefinement (CCD data at 100 K) of the polymeric lead(II) thiourea complex, [PbCl2·2tu]n where (tu = SCN2H4), basically confirmed the previous study based on integrated Weissenberg data recorded at room temperature [Nardelli & Fava (1959). Acta Cryst. 12, 727–732]; all atomic positions could be determined with significantly higher precision and accuracy. In addition, all H atoms could be located from difference maps, revealing details of the hydrogen-bonding scheme.