The boy accidentally shot himself inside a home in northwest Harris County on Nov. 1., according to Sheriff Ed Gonzalez.
Anthony Love, 31, has been charged with making a firearm accessible to a minor, a misdemeanor.
According to Sheriff Ed Gonzalez, there were two adults and several of the child's siblings inside the home at the time of the incident.
Gonzalez said preliminary reports show the child somehow got a hold of the gun that was left loaded.
TIMELINE: Children accidentally shooting themselves with guns in their homes
TIMELINE: Houston-area children that accidentally shot themselves
As of Wednesday afternoon, Love was not in custody.