diff --git a/is.ts b/is.ts
index 855bda9..e0c39da 100644
--- a/is.ts
+++ b/is.ts
@@ -81,7 +81,7 @@ export function is_aug(
 	return Object.keys(aug).length == 4
 		&& is_msg(aug.msg, len_msg_rec)
 		&& is_lim(aug.amt, lim_amt, -lim_amt)
-		&& is_utc(aug.utc) && is_id(aug.sec)
+		&& is_utc(aug.utc) && is_id(aug.usr)
 }
 export function is_cdt(
 	cdt: Cdt,
diff --git a/typ.ts b/typ.ts
index 22ff185..8b23a5b 100644
--- a/typ.ts
+++ b/typ.ts
@@ -28,7 +28,7 @@ export type Rec = {
 }
 export type Cdt = Rec & {
 	utc: { eft: number, exp: number, agr: number },
-	aug?: { msg: string, amt: number, utc: number, sec: Usr["_id"] }[],
+	aug?: { msg: string, amt: number, utc: number, usr: Usr["_id"] }[],
 }
 export type Dbt = Rec & {
 	rev?: { msg: string, rev: 1 | 2 | 3 | 4 | 5, utc: number },