diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index fddae1f2b64..9971ef26cd9 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -52,4 +52,5 @@ Matthew Fitzgerald @mfitzgerald2 <matt@mfitz.net>
 Simon Van Accoleyen @SimonVanacco <simon@vanacco.fr>
 Michael Bianco <mike@mikebian.co>
 Ben Fesili @benfes
-Markus Dick @markusdick
\ No newline at end of file
+Markus Dick @markusdick
+Dung Nguyen @nhymxu
diff --git a/app/Http/Controllers/ContactsController.php b/app/Http/Controllers/ContactsController.php
index 98c54aa55f8..1ac218eb091 100644
--- a/app/Http/Controllers/ContactsController.php
+++ b/app/Http/Controllers/ContactsController.php
@@ -100,6 +100,10 @@ private function contacts(Request $request, bool $active)
                 return 'tags[]='.urlencode($tag->name);
             })->join('&');
 
+            if ('' !== $url) {
+                $url .= '&';
+            }
+
             if ($tags->count() === 0) {
                 return redirect()->route('people.index');
             } else {