diff --git a/src/app/api/v1/commercial_license_trial/route.ts b/src/app/api/v1/commercial_license_trial/route.ts
index c2c6855..ca8d63b 100644
--- a/src/app/api/v1/commercial_license_trial/route.ts
+++ b/src/app/api/v1/commercial_license_trial/route.ts
@@ -103,6 +103,8 @@ export async function checkUserInDB(req: NextRequest): Promise<{
 		.select("*")
 		.eq("user_id", user.id)
 		.limit(1)
+		// The commercial_license_trial only shows rows where the user has made
+		// at least one call to /v1/commercial_license_trial.
 		.maybeSingle();
 	if (res.error) {
 		throw convertPgError(res.error);