diff --git a/src/proxy/handshake.rs b/src/proxy/handshake.rs
index fc6413a..9fd2587 100644
--- a/src/proxy/handshake.rs
+++ b/src/proxy/handshake.rs
@@ -274,7 +274,7 @@ fn candidate_scan_start_offset_in(
     candidate_budget: usize,
 ) -> usize {
     if total_users == 0 || candidate_budget >= total_users {
-        return 0;
+        return total_users.saturating_sub(total_users);
     }
 
     let seq = shared