diff --git a/spec.bs b/spec.bs
index b66e165b3..5653f5ce8 100644
--- a/spec.bs
+++ b/spec.bs
@@ -2894,7 +2894,7 @@ a [=list=] of [=interest groups=] |bidIgs|, and a [=list=] of [=bid debug report
    : [=leading bid info/top level seller signals=]
    :: Null
    : [=leading bid info/component seller=]
-   :: Null if |topLevelAuctionConfig| is not null, otherwise |auctionConfig|'s [=auction config/seller=].
+   :: Null if |topLevelAuctionConfig| is null, otherwise |auctionConfig|'s [=auction config/seller=].
    : [=leading bid info/bidding data version=]
    :: Null
    : [=leading bid info/scoring data version=]