diff --git a/api/results.go b/api/results.go
index 94e2ba8015a514db173c292f6adb4a4fe634a0db..1e8a75bab509b4773f6d66a04bfb68b7f746cea6 100644
--- a/api/results.go
+++ b/api/results.go
@@ -206,7 +206,7 @@ func (c *Client) getHistoricalRounds(msg *pb.HistoricalRounds,
 	}
 
 	// Service historical rounds, sending back to the caller thread
-	for _, ri := range resp.Rounds {
+	for i, ri := range resp.Rounds {
 		if ri == nil {
 			// Handle unknown by historical rounds
 			sendResults <- ds.EventReturn{