diff --git a/crates/driver/src/infra/api/routes/solve/mod.rs b/crates/driver/src/infra/api/routes/solve/mod.rs
index 98faccaa7c..224e99fc5f 100644
--- a/crates/driver/src/infra/api/routes/solve/mod.rs
+++ b/crates/driver/src/infra/api/routes/solve/mod.rs
@@ -37,6 +37,8 @@ async fn route(
             .prioritize(auction, &competition.solver.account().address())
             .await;
         let result = competition.solve(auction).await;
+        // Solving takes some time, so there is a chance for the settlement queue to
+        // have capacity again.
         competition.ensure_settle_queue_capacity()?;
         observe::solved(state.solver().name(), &result);
         Ok(axum::Json(dto::SolveResponse::new(