holes in cinnamon raisin bread

When making a loaf of cinnamon bread I do the mixing of the dough in my bread machine. When that is complete I roll out the dough and add a mixture of cinnamon, sugar, and brown sugar then roll the loaf and place it in a pan for the last rise. After baking the bread and letting it cool I cut into the loaf and find major holes in the center of the loaf. The question I have is does anyone know how to eliminate the air holes in the bread loaf?
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