diff --git a/proto/checkconfig.proto b/proto/checkconfig.proto
index 880807a..1f3dd93 100644
--- a/proto/checkconfig.proto
+++ b/proto/checkconfig.proto
@@ -69,8 +69,7 @@ message RootOfTrust {
   // If true, download and check the CRL for revoked certificates.
   bool check_crl = 3;
 
-  // If true, then check is not permitted to download necessary files for
-  // verification.
+  // If true, download collateral files for TCB SVN verification.
   bool get_collateral = 4;
 }