ABSTRACT The cleft palate is the communication between the oral and nasal cavity through an aperture in the palate, it’s causes include an infinitude of factors: congenital, traumatic, mineral deficiency or hormonal. Examination of the oral cavity determines if the diagnosis and treatment is surgical. Correction in adult animals is performed with mucoperiosteal flap showing good results. However, surgical correction in puppies is more complicated with less favorable prognosis. This current work reports a case of an adult, female dog of undefined breed, with a history of secondary clef palate of traumatic origin in the soft palate due to bone ingestion. For correction, a biological membrane of bovine pericardium was used, but it was not successful, requiring a second surgical procedure performed with autologous simple mucoperiosteal flap. The last technique combined with adequate postoperative care was effective.