diff --git a/mdx/check_future_0.xsl b/mdx/check_future_0.xsl
index 9bdec64c..735c1b54 100644
--- a/mdx/check_future_0.xsl
+++ b/mdx/check_future_0.xsl
@@ -34,7 +34,7 @@
 		[not(md:KeyDescriptor[descendant::ds:X509Data][@use='signing'])]
 		[not(md:KeyDescriptor[descendant::ds:X509Data][not(@use)])]">
 		<xsl:call-template name="error">
-			<xsl:with-param name="m">SAML 2.0 IdP has no signing key</xsl:with-param>
+			<xsl:with-param name="m">SAML 2.0 IdP has no embedded signing key</xsl:with-param>
 		</xsl:call-template>
 	</xsl:template>
 	<xsl:template match="md:AttributeAuthorityDescriptor
@@ -42,7 +42,7 @@
 		[not(md:KeyDescriptor[descendant::ds:X509Data][@use='signing'])]
 		[not(md:KeyDescriptor[descendant::ds:X509Data][not(@use)])]">
 		<xsl:call-template name="error">
-			<xsl:with-param name="m">SAML 2.0 AttributeAuthority has no signing key</xsl:with-param>
+			<xsl:with-param name="m">SAML 2.0 AttributeAuthority has no embedded signing key</xsl:with-param>
 		</xsl:call-template>
 	</xsl:template>