Police say a white male entered the Shell food mart on Hartford Highway Monday and showed what was believed to be a gun under his sweatshirt.
He demanded the clerk hand over the store's money.
Police say he then fled to a nearby apartment complex.
Witnesses report the suspect may have left the area in a small four-door pickup.
If you have information about the crime, call the Dothan Police Department at 615-3000 or Crimestoppers at 793-7000.