diff --git a/modules/lang/plantuml/autoload.el b/modules/lang/plantuml/autoload.el
index e97d32666..3d1e37aef 100644
--- a/modules/lang/plantuml/autoload.el
+++ b/modules/lang/plantuml/autoload.el
@@ -8,7 +8,7 @@ This function is called by `org-babel-execute-src-block'."
   ;; REVIEW Refactor me
   (let* ((body (replace-regexp-in-string
                 "^[[:blank:]\n]*\\(@start\\)"
-                "\\\\\\1"
+                "\\1"
                 body))
          (fullbody (org-babel-plantuml-make-body body params))
          (out-file (or (cdr (assq :file params))