diff --git a/spec.bs b/spec.bs
index 18c043e5e..b3fe8ef50 100644
--- a/spec.bs
+++ b/spec.bs
@@ -2893,7 +2893,7 @@ with the following content:
A direct from seller signals key is a [=struct=] with the following [=struct/items=]:
-: origin
+: seller
:: An [=origin=]. Matches the origin that served the captured [:Ad-Auction-Signals:] header.
: ad slot
:: A [=string=]. Matches the `adSlot` key of the JSON dictionaries in the top level array of the
@@ -2970,7 +2970,7 @@ The following algorithm will be added to the [=http-network-or-cache fetch=] alg
1. If |signal| is not an [=ordered map=], [=iteration/continue=].
1. If |signal|["`adSlot`"] doesn't exist, [=iteration/continue=].
1. Create a new [=direct from seller signals key=] |signalsKey|, with its
- [=direct from seller signals key/origin=] set to |requestOrigin| and its
+ [=direct from seller signals key/seller=] set to |requestOrigin| and its
[=direct from seller signals key/ad slot=] set to |signal|["`adSlot`"].
1. Create a new [=direct from seller signals=] |processedSignals|.
1. [=map/Remove=] |signal|["`adSlot`"].