diff --git a/org-babel-tangle-file b/org-babel-tangle-file
index f77a84c..ade2f0e 100755
--- a/org-babel-tangle-file
+++ b/org-babel-tangle-file
@@ -4,6 +4,7 @@ emacs -Q --batch --eval "
 (progn
   (require 'org)
   (require 'ob-latex)
+  (require 'ox-latex)
   (defun my-org-eval-blocks-named (infix)
     (when (eq major-mode 'org-mode)
       (let ((blocks