diff --git a/cmd/csaf_checker/processor.go b/cmd/csaf_checker/processor.go
index 18ef49e..ea16c54 100644
--- a/cmd/csaf_checker/processor.go
+++ b/cmd/csaf_checker/processor.go
@@ -636,6 +636,7 @@ func (p *processor) integrity(
 	if err != nil {
 		return err
 	}
+	b.Path = ""
 	client := p.httpClient()
 
 	var data bytes.Buffer
@@ -953,7 +954,7 @@ func (p *processor) checkIndex(base string, mask whereType) error {
 				continue
 			}
 
-			files = append(files, csaf.DirectoryAdvisoryFile{Path: u})
+			files = append(files, csaf.DirectoryAdvisoryFile{Path: bu.JoinPath(u).String()})
 		}
 		return files, scanner.Err()
 	}()
@@ -1036,7 +1037,7 @@ func (p *processor) checkChanges(base string, mask whereType) error {
 			path := r[pathColumn]
 
 			times, files = append(times, t),
-				append(files, csaf.DirectoryAdvisoryFile{Path: path})
+				append(files, csaf.DirectoryAdvisoryFile{Path: bu.JoinPath(path).String()})
 			p.timesChanges[path] = t
 		}
 		return times, files, nil
diff --git a/internal/misc/url.go b/internal/misc/url.go
index 2256a94..fb97a49 100644
--- a/internal/misc/url.go
+++ b/internal/misc/url.go
@@ -12,6 +12,10 @@ import "net/url"
 
 // JoinURL joins the two URLs while preserving the query and fragment part of the latter.
 func JoinURL(baseURL *url.URL, relativeURL *url.URL) *url.URL {
+	// Check if we already have an absolute url
+	if relativeURL.Host != "" && relativeURL.Host != baseURL.Host && relativeURL.Scheme == "https" {
+		return relativeURL
+	}
 	u := baseURL.JoinPath(relativeURL.Path)
 	u.RawQuery = relativeURL.RawQuery
 	u.RawFragment = relativeURL.RawFragment