diff --git a/layers.personal/orgtools/local/ob-tikz/ob-tikz.el b/layers.personal/orgtools/local/ob-tikz/ob-tikz.el
index 3163fbc..5387547 100644
--- a/layers.personal/orgtools/local/ob-tikz/ob-tikz.el
+++ b/layers.personal/orgtools/local/ob-tikz/ob-tikz.el
@@ -93,10 +93,11 @@
 			                   "\" cd " dir ";"
 			                   cmd "\"")))
 
-(defun tikz-script (fmt tikz-libs gd-libs body)
+(defun tikz-script (fmt prologue tikz-libs gd-libs body)
   (setq tikz-prologues 
 	      (concat "\\documentclass{article}\n"
 		            "\\usepackage{tikz}\n"
+                prologue
 		            "%%\\usepackage{pgfplots}\n"
 		            (if tikz-libs
 		                (concat "\\usetikzlibrary{"
@@ -150,6 +151,8 @@ This function is called by `org-babel-execute-src-block'."
 		              )))
     (with-temp-file (concat in-file ".tex") 
       (insert (tikz-script format 
+                           (tikz-get-value-by-name 'prologue
+                                                   (org-babel--get-vars params))
 			                     (tikz-get-value-by-name 'tikz-libs
                                                    (org-babel--get-vars params))
                            (tikz-get-value-by-name 'gd-libs