The ornamental design for the brace for a step of a stepladder, as shown and described.
FIG. 1 is a rear perspective view of the brace for a step of a stepladder showing our design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a side elevation view thereof;
FIG. 5 is an opposite side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a front elevation view showing the brace for a step of a stepladder affixed to a stepladder.
The brace for a step of a stepladder is an attachment for a ladder. The broken lines are for environmental purposes only and form no part of the claimed design.