diff --git a/chapter/section/spanningtree.tex b/chapter/section/spanningtree.tex
index 9e68d4c..fd90837 100644
--- a/chapter/section/spanningtree.tex
+++ b/chapter/section/spanningtree.tex
@@ -147,7 +147,7 @@ Using a \textbf{R}oot \textbf{B}rigde as the reference point for the STP instanc
 
 \fig{rstp/portroles}{rstpportroles}{Port Roles}
 
-\fig{rstp/portlinktypes{rstpportlinktypes}{Port link types}
+\fig{rstp/portlinktypes}{rstpportlinktypes}{Port link types}
 
 Things to be aware of regarding RSTP port roles
 \begin{itemize}