diff --git a/docs/swarm/review-classifier.md b/docs/swarm/review-classifier.md
index 4ded2895..4d7819b2 100644
--- a/docs/swarm/review-classifier.md
+++ b/docs/swarm/review-classifier.md
@@ -290,7 +290,7 @@ lets the runtime's prompt cache reuse it across questions.
 The controller builds the diff itself, from each changed file at the PR's
 merge base and at its head, with 25 lines of context around each change
 rather than the 3 of the forge's `.diff`. An enclosing gate, such as a
-`config = lib.mkIf …` or an option's `default`, is in view when it is within
+`config = lib.mkIf …` or an option's `default`, is in view when it's within
 25 lines of the change, so a move that restates it doesn't read as adding one.
 A gate further away is still out of view. The
 controller sends the forge's `.diff` instead when the PR changes more than