The title compound, C9H9NO, crystallized with two independent molecules (A and B) in the asymmetric unit. The conformation of the two molecules differs slightly with the phenyl ring in molecule A, forming a dihedral angle of 15.38 (12)degrees with the oxime group (O-N=C), compared to the corresponding angle of 26.29 (11)degrees in molecule B. In the crystal, the A and B molecules are linked head-to-head by O-H center dot center dot center dot N hydrogen bonds, forming -A-B-A-B- zigzag chains along {[}010]. Within the chains and between neighbouring chains there are C-H center dot center dot center dot pi interactions present, forming a three-dimensional structure.