diff --git a/format-master.xml b/format-master.xml
index 3a5c7ad..c924d86 100755
--- a/format-master.xml
+++ b/format-master.xml
@@ -1463,7 +1463,7 @@
 							<xsl:when test="(name(/child::node()[1])='tutorial') or (name(/child::node()[1])='laboratory') or /document/@class = 'tutorial' or /document/@class = 'laboratory' ">
 								<xsl:text>Graphics/</xsl:text>
 								<xsl:value-of select="basename|@basename"/>
-								<xsl:text>-72dpi</xsl:text>
+								<xsl:text>-96dpi</xsl:text>
 							</xsl:when>
 							<!-- Allow the author to specify a non-standard image location on the fly. -->
 							<xsl:when test="count(location) != 0">