Received 14 December 2013
The title in the paper by Elgemeie et al. [Acta Cryst. (2013), E69, o187 ] is corrected.
In the paper by Elgemeie et al. (2013), the scheme and title give the incorrect stereoisomer of the title compound. The correct title should be `(Z)-3-Amino-4-(2-phenylhydrazinylidene)-1H-pyrazol-5(4H)-one' and the correct scheme is shown below.