diff --git a/sections/problem-definition.tex b/sections/problem-definition.tex
index 94c6e2b9fc0dce42dc543ffa84269e9a250f4743..bc50533b73270aa752b6c8989c194eed996ab3c9 100644
--- a/sections/problem-definition.tex
+++ b/sections/problem-definition.tex
@@ -13,7 +13,7 @@
 
 		\note{
 			Let us start with some notation.
-			Assume that all data comes in atomic units called blocks and assume that we have $N$ distinct blocks in ORAM.
+			Assume that all data comes in atomic units called blocks and assume that we have $N$ distinct blocks in ORAM\@.
 		}
 	\end{frame}