diff --git a/src/FontLib/TrueType/File.php b/src/FontLib/TrueType/File.php
index f4c797a..846dd9d 100644
--- a/src/FontLib/TrueType/File.php
+++ b/src/FontLib/TrueType/File.php
@@ -405,7 +405,7 @@ function parseTableEntries() {
       $entry = new $class($this);
       $entry->parse();
 
-      $this->directory[$entry->tag] = $entry;
+      $this->addDirectoryEntry($entry);
     }
   }