--- a/slides/slides06.tex	Sat Jan 03 23:14:47 2015 +0000
+++ b/slides/slides06.tex	Sun Mar 01 00:11:13 2015 +0000
@@ -206,7 +206,7 @@
 
 \begin{itemize}
 \item \alert{\bf Completeness} If Alice knows the secret, Bob
-      accepts Alice ``proof'' for sure.\bigskip
+      accepts Alice's ``proof'' for sure.\bigskip
 \item \alert{\bf Soundness} If Alice does not know the secret,
       Bob accepts her ``proof'' with a very small probability.