diff --git a/themes/steeef.zsh-theme b/themes/steeef.zsh-theme
index c616c464f..bd3d516af 100755
--- a/themes/steeef.zsh-theme
+++ b/themes/steeef.zsh-theme
@@ -3,6 +3,9 @@
 #
 # vcs_info modifications from Bart Trojanowski's zsh prompt:
 # http://www.jukie.net/bart/blog/pimping-out-zsh-prompt
+#
+# git untracked files modification from Brian Carper:
+# http://briancarper.net/blog/570/git-info-in-your-zsh-prompt
 
 function virtualenv_info {
     [ $VIRTUAL_ENV ] && echo '('`basename $VIRTUAL_ENV`') '