diff --git a/tex/lecture_7.pdf b/tex/lecture_7.pdf
index 57a7824..4e7a644 100644
Binary files a/tex/lecture_7.pdf and b/tex/lecture_7.pdf differ
diff --git a/tex/lecture_7.tex b/tex/lecture_7.tex
index 3e628a0..699a2c6 100644
--- a/tex/lecture_7.tex
+++ b/tex/lecture_7.tex
@@ -120,7 +120,7 @@
 
 
 	%-------------------------------------------------------------------------------
-	\section{Auidt Supply Chains}
+	\section{Audit Supply Chains}
 	%-------------------------------------------------------------------------------
 
 \begin{frame}