# UNDF: UNDF-2026-000000895
--- a/modules/indexer/code/search.go
+++ b/modules/indexer/code/search.go
@@ -50,12 +50,13 @@ type Results []*Result

 // Get the set of repo IDs from a list of search results
 func (res Results) RepoIDs() []int64 {
-	ids := make([]int64, len(res))
+	seen := make(map[int64]struct{}, len(res))
+	ids := make([]int64, 0, len(res))
 	for _, r := range res {
-		if !slices.Contains(ids, r.RepoID) {
+		if _, ok := seen[r.RepoID]; !ok {
+			seen[r.RepoID] = struct{}{}
 			ids = append(ids, r.RepoID)
 		}
 	}
 	return ids
 }