diff --git a/controllers/ViewPhotoAlbum.php b/controllers/ViewPhotoAlbum.php
index 59f7727..f6872df 100644
--- a/controllers/ViewPhotoAlbum.php
+++ b/controllers/ViewPhotoAlbum.php
@@ -60,7 +60,7 @@ class ViewPhotoAlbum extends HTMLController
 					'label' => $contributor['first_name'],
 					'caption' => sprintf('By %s (%s photos)',
 						$contributor['first_name'], $contributor['num_assets']),
-					'link' => $tag->getUrl() . '/?by=' . $contributor['slug'],
+					'link' => $tag->getUrl() . '?by=' . $contributor['slug'],
 				];
 			}
 		}
@@ -119,7 +119,7 @@ class ViewPhotoAlbum extends HTMLController
 				'items_per_page' => self::PER_PAGE,
 				'start' => ($current_page - 1) * self::PER_PAGE,
 				'base_url' => $tag->getUrl(),
-				'page_slug' => 'page/%PAGE%/' . (isset($active_filter) ? '?by=' . $active_filter : ''),
+				'page_slug' => 'page/%PAGE%/' . (!empty($active_filter) ? '?by=' . $active_filter : ''),
 				'index_class' => 'pagination-lg justify-content-around justify-content-lg-center',
 			]);
 			$this->page->adopt(new PageIndexWidget($index));