diff --git a/template-parts/articles/article-toolbar.php b/template-parts/articles/article-toolbar.php
index f6bf11e..aa96caf 100644
--- a/template-parts/articles/article-toolbar.php
+++ b/template-parts/articles/article-toolbar.php
@@ -6,7 +6,7 @@ $authors = get_field('authors', $id);
 $hasAuthors = isset($authors) && is_array($authors) && count($authors) > 0;
 
 $pdf_version = get_field('pdf_version', $id);
-$pdf_url = isset($pdf_version) ? $pdf_version['url'] : null;
+$pdf_url = isset($pdf_version) && !empty($pdf_version['url']) ? $pdf_version['url'] : null;
 
 ?>