diff --git a/pkg/experiment/local/cohort_download_api.go b/pkg/experiment/local/cohort_download_api.go
index 6d09fcd..2b022ed 100644
--- a/pkg/experiment/local/cohort_download_api.go
+++ b/pkg/experiment/local/cohort_download_api.go
@@ -85,6 +85,7 @@ func (api *directCohortDownloadApi) getCohort(cohortID string, cohort *Cohort) (
 				}(),
 			}, nil
 		} else if response.StatusCode == http.StatusNoContent {
+			api.log.Debug("getCohortMembers(%s): Cohort not modified", cohortID)
 			return nil, nil
 		} else if response.StatusCode == http.StatusRequestEntityTooLarge {
 			return nil, &CohortTooLargeException{Message: "Cohort exceeds max cohort size"}