diff --git a/nostarch/chapter01.md b/nostarch/chapter01.md
index 3a47ab0c4..04672fb16 100644
--- a/nostarch/chapter01.md
+++ b/nostarch/chapter01.md
@@ -33,8 +33,6 @@ warnings. In other words, any newer, stable version of Rust you install using
 these steps should work as expected with the content of this book.
 
 
-Unmatched: BoxType
-
 > ### Command Line Notation
 
 
diff --git a/tools/docx-to-md.xsl b/tools/docx-to-md.xsl
index 3ba755b9a..0f80fadf1 100644
--- a/tools/docx-to-md.xsl
+++ b/tools/docx-to-md.xsl
@@ -24,6 +24,7 @@
     <xsl:template match="w:p[w:pPr/w:pStyle/@w:val = 'CopyrightHead']" />
     <xsl:template match="w:p[w:pPr/w:pStyle/@w:val = 'CopyrightLOC']" />
     <xsl:template match="w:p[w:pPr/w:pStyle/@w:val = 'ProductionDirective0']" />
+    <xsl:template match="w:p[w:pPr/w:pStyle/@w:val = 'BoxType']" />
 
     <xsl:template match="w:p[w:pPr[not(w:pStyle)]]" />