diff --git a/introduction.tex b/introduction.tex
index a08a7b2..2f5eb27 100644
--- a/introduction.tex
+++ b/introduction.tex
@@ -1,4 +1,4 @@
-\section{Introdution}
+\section{Introduction}
 
 Bitcoin~\cite{bitcoin} and other blockchains which use the same backbone
 consensus mechanism~\cite{EC:GarKiaLeo15} use Simple Payment Verification (SPV)