diff --git a/book/insnformats.tex b/book/insnformats.tex
index 9c30097..7fb4c26 100644
--- a/book/insnformats.tex
+++ b/book/insnformats.tex
@@ -821,7 +821,7 @@
 	\DrawInsnBoxRel{14}{12}{}
 	\DrawInsnBoxRel{11}{7}{imm[4:1\textbar11]}
 	\DrawInsnBoxRel{6}{0}{}
-	\draw(\InsnBoxTypePosY,.75) node[right]{\hyperref[insnformat:itype]{B-type}};
+	\draw(\InsnBoxTypePosY,.75) node[right]{\hyperref[insnformat:btype]{B-type}};
 	\draw(\InsnBoxMneumonicPosY,.75) node[right]{#3};
 
 	\begin{scope}[shift={(31-6,0)}]\DrawBitstringX{#1}\end{scope}