diff --git a/app/src/ViewFunctions/FileUrl.php b/app/src/ViewFunctions/FileUrl.php
index 7d7ee43..85c5252 100644
--- a/app/src/ViewFunctions/FileUrl.php
+++ b/app/src/ViewFunctions/FileUrl.php
@@ -22,7 +22,7 @@ class FileUrl extends Url
             return $this->escape($path);
         }
 
-        if ($path === null || $path === '') {
+        if ($path === '') {
             return '';
         }
 
diff --git a/app/src/ViewFunctions/ZipUrl.php b/app/src/ViewFunctions/ZipUrl.php
index dd1f4a3..0487b51 100644
--- a/app/src/ViewFunctions/ZipUrl.php
+++ b/app/src/ViewFunctions/ZipUrl.php
@@ -18,7 +18,7 @@ class ZipUrl extends Url
     {
         $path = $this->stripLeadingSlashes($path);
 
-        if ($path === null || $path === '') {
+        if ($path === '') {
             return '?zip=.';
         }