diff --git a/format-master.xml b/format-master.xml
index af3f949..eab1fef 100755
--- a/format-master.xml
+++ b/format-master.xml
@@ -554,6 +554,25 @@
 		Anything inside an OMIT element is also ignored completely.
 	-->
 	<template name="omit" match="omit"/>
+
+	
+	<!--
+		Comments are not quite ignored completely, as they're carried through to the output document (kind of: "It is an error if instantiating the content of xsl:comment creates nodes other than text nodes.")
+	-->
+	<template name="comment" match="comment">
+		<latex>
+			<xsl:text>
+\begin{comment}</xsl:text>
+				<xsl:apply-templates/>
+				<xsl:text>\end{comment}
+</xsl:text>
+		</latex>
+		<html>
+			<xsl:comment>
+				<xsl:apply-templates/>
+			</xsl:comment>
+		</html>
+	</template>
 	
 	
 	<!-- Tabular structures (LaTeX {tabular}, HTML <TABLE>). -->
