diff --git a/TODO b/TODO
index e5fc4fa7696..fa88a8d909e 100644
--- a/TODO
+++ b/TODO
@@ -49,6 +49,7 @@ ext/standard
 ------------
     * strpad() (Andrei)
     * stri_replace() (Andrei)
+    * realpath() (Andrei)
     * comparing arrays semantically (like Python) (Andrei)
     * NOT binary safe:
         strtok()