diff --git a/chapter/mgmt.tex b/chapter/mgmt.tex
index 8985acf..a1562b1 100644
--- a/chapter/mgmt.tex
+++ b/chapter/mgmt.tex
@@ -308,7 +308,7 @@ Cisco switches allow by default only the following 3 protos until the client is
 	\item The \textbf{authentication server}
 \end{itemize}
 
-\fig{8021X/portauth}{portauth}{802.1X Port Auth}
+\fig{8021x/portauth}{portauth}{802.1X Port Auth}
 
 802.1X can be enabled on a Cisco switch globally by \cliline{dot1x system-auth-control} and \textit{then} enabled on the switch port{\footnotesize (s)} by \cliline{aaa authentication dot1x}.
 
diff --git a/img/8021X/8021x.png b/img/8021x/8021x.png
similarity index 100%
rename from img/8021X/8021x.png
rename to img/8021x/8021x.png
diff --git a/img/8021X/portauth.png b/img/8021x/portauth.png
similarity index 100%
rename from img/8021X/portauth.png
rename to img/8021x/portauth.png