diff --git a/html_calendar.xsl b/html_calendar.xsl
index ae5bc32..66496ac 100755
--- a/html_calendar.xsl
+++ b/html_calendar.xsl
@@ -485,6 +485,10 @@
 		<I><xsl:apply-templates/></I>
 	</xsl:template>
 	
+	<xsl:template match="u">
+		<U><xsl:apply-templates/></U>
+	</xsl:template>
+	
 	<xsl:template match="br">
 		<BR/>
 	</xsl:template>