diff --git a/pkg/catalog/catalog.go b/pkg/catalog/catalog.go
index a2439956694..ee405570c8d 100644
--- a/pkg/catalog/catalog.go
+++ b/pkg/catalog/catalog.go
@@ -584,7 +584,8 @@ func (c *Catalog) DeleteRepositoryMetadata(ctx context.Context, repository strin
 }
 
 // ListRepositories list repository information, the bool returned is true when more repositories can be listed.
-// In this case, pass the last repository name as 'after' on the next call to ListRepositories
+// In this case, pass the last repository name as 'after' on the next call to ListRepositories. Results can be
+// filtered by specifying a prefix or, more generally, a searchString.
 func (c *Catalog) ListRepositories(ctx context.Context, limit int, prefix, searchString, after string) ([]*Repository, bool, error) {
 	// normalize limit
 	if limit < 0 || limit > ListRepositoriesLimitMax {