diff --git a/README.org b/README.org
index e2f0d1c..8e5107f 100644
--- a/README.org
+++ b/README.org
@@ -258,10 +258,10 @@ Set up the fonts to use.
      `(org-level-7 ((t (,@headline ,@variable-tuple))))
      `(org-level-6 ((t (,@headline ,@variable-tuple))))
      `(org-level-5 ((t (,@headline ,@variable-tuple))))
-     `(org-level-4 ((t (,@headline ,@variable-tuple :height 1))))
-     `(org-level-3 ((t (,@headline ,@variable-tuple :height 1))))
-     `(org-level-2 ((t (,@headline ,@variable-tuple :height 1))))
-     `(org-level-1 ((t (,@headline ,@variable-tuple :height 1))))
+     `(org-level-4 ((t (,@headline ,@variable-tuple :height 1.0))))
+     `(org-level-3 ((t (,@headline ,@variable-tuple :height 1.0))))
+     `(org-level-2 ((t (,@headline ,@variable-tuple :height 1.0))))
+     `(org-level-1 ((t (,@headline ,@variable-tuple :height 1.0))))
      `(org-document-title ((t (,@headline ,@variable-tuple :height 1.0 :underline nil))))))
 
   (custom-theme-set-faces