Parents of hospitalized premature infants are at risk for developing psychological symptoms. This randomized controlled pilot study examined the effectiveness of a brief cognitive–behavioral intervention in reducing traumatic and depressive symptoms in mothers 1 month after their infant's discharge from the hospital. Fifty-six mothers were randomly assigned to the intervention or control group. Results showed that mothers experienced high levels of symptoms initially and at follow-up. At follow-up, there was a trend for mothers in the intervention group to report lower levels of depression (p = .06; Cohen's f = .318), but levels of traumatic symptoms were similar for both groups. Brief psychological interventions may reduce depressive symptoms in this population. Estimates of the effect sizes can be used to inform future intervention studies.