diff --git a/Chapter2_MorePyMC/separation_plot.py b/Chapter2_MorePyMC/separation_plot.py
index f470c9fc..981f968b 100644
--- a/Chapter2_MorePyMC/separation_plot.py
+++ b/Chapter2_MorePyMC/separation_plot.py
@@ -10,7 +10,7 @@
 
 def separation_plot( p, y, **kwargs ):
     """
-    This function creates a separation plot for logitisc and probit classification. 
+    This function creates a separation plot for logistic and probit classification. 
     See http://mdwardlab.com/sites/default/files/GreenhillWardSacks.pdf
     
     p: The proportions/probabilities, can be a nxM matrix which represents M models.
@@ -52,4 +52,4 @@ def separation_plot( p, y, **kwargs ):
     return
     
 
-    
\ No newline at end of file
+