diff --git a/internal/mysql/devicerepo.go b/internal/mysql/devicerepo.go
index 9892e64..ad72759 100644
--- a/internal/mysql/devicerepo.go
+++ b/internal/mysql/devicerepo.go
@@ -296,8 +296,13 @@ func (r *DeviceRepo) populate(ctx context.Context, records []deviceRecord) ([]mo
 		return nil, dbErr(err)
 	}
 
+	hasAdded := make(map[int]bool, len(records))
 	devices := make([]models.Device, 0, len(records))
 	for _, record := range records {
+		if hasAdded[record.ID] {
+			continue
+		}
+
 		device := models.Device{
 			ID:               record.ID,
 			BridgeID:         record.BridgeID,
@@ -361,6 +366,7 @@ func (r *DeviceRepo) populate(ctx context.Context, records []deviceRecord) ([]mo
 			}
 		}
 
+		hasAdded[record.ID] = true
 		devices = append(devices, device)
 	}