diff --git a/internal/spec_iterator/parallel_spec_iterator.go b/internal/spec_iterator/parallel_spec_iterator.go
index 54e61ecb4..99f548bca 100644
--- a/internal/spec_iterator/parallel_spec_iterator.go
+++ b/internal/spec_iterator/parallel_spec_iterator.go
@@ -2,7 +2,6 @@ package spec_iterator
 
 import (
 	"encoding/json"
-	"errors"
 	"fmt"
 	"net/http"
 
@@ -31,7 +30,7 @@ func (s *ParallelIterator) Next() (*spec.Spec, error) {
 	defer resp.Body.Close()
 
 	if resp.StatusCode != http.StatusOK {
-		return nil, errors.New(fmt.Sprintf("unexpected status code %d", resp.StatusCode))
+		return nil, fmt.Errorf("unexpected status code %d", resp.StatusCode)
 	}
 
 	var counter Counter