diff --git a/normdist.py b/normdist.py
index e4b5d1e..00cb33b 100644
--- a/normdist.py
+++ b/normdist.py
@@ -21,7 +21,7 @@ textstr = '\n'.join((
     r'$n=%d$' % (len(data)),
     r'$\mu=%.2f$' % (mean, ),
     r'$P=%.2f$' % (prob, ),
-    r'$I=%.2f$' % (info, )))
+    r'$I=%.2f$ bits' % (info, )))
 # these are matplotlib.patch.Patch properties
 props = dict(boxstyle='round', facecolor='wheat', alpha=0.5)