diff --git a/sw-theme.el b/sw-theme.el
index b937878..7a40312 100644
--- a/sw-theme.el
+++ b/sw-theme.el
@@ -56,7 +56,11 @@
                                        :box (:line-width 1 :color "#004000")))
                          (((background dark))
                           (:background "#000000" :foreground "#aaaaaa"
-                                       :box (:line-width 1 :color "#500000")))))))
+                                       :box (:line-width 1 :color "#500000")))))
+   '(region ((((background light))
+              (:background "#00aa00" :foreground "#ffffff"))
+             (((background dark))
+              (:background "#ff0000" :foreground "#ffffff"))))))
 
 (defun turn-on-jedi ()
   (disable-theme 'sith)