diff --git a/helpers.inc.php b/helpers.inc.php
index 55d667e..ac86d0c 100644
--- a/helpers.inc.php
+++ b/helpers.inc.php
@@ -170,14 +170,21 @@ function json_make_pretty(string $json) : string
 
 function need_to_regen(string $file, array $deps, bool $debug = false) : bool
 {
-  if(!is_file($file))
+  if(is_file($file))
+  {
+    $fmtime = filemtime($file); 
+  }
+  else if(is_dir($file))
+  {
+    $fmtime = filectime($file); 
+  }
+  else
   {
     if($debug)
       echo "! $file\n";
     return true;
   }
 
-  $fmtime = filemtime($file); 
   foreach($deps as $dep)
   {
     if($dep && is_file($dep) && (filemtime($dep) > $fmtime))