diff --git a/pipeline-braille-utils/css-utils/css-utils/src/main/resources/xml/braille-css.xsl b/pipeline-braille-utils/css-utils/css-utils/src/main/resources/xml/braille-css.xsl
index b3cfda22a..8085501dc 100644
--- a/pipeline-braille-utils/css-utils/css-utils/src/main/resources/xml/braille-css.xsl
+++ b/pipeline-braille-utils/css-utils/css-utils/src/main/resources/xml/braille-css.xsl
@@ -308,7 +308,7 @@
     
     <xsl:function name="css:is-inherited" as="xs:boolean">
         <xsl:param name="property" as="xs:string"/>
-        <xsl:sequence select="boolean(index-of($css:inherited-properties, $property))"/>
+        <xsl:sequence select="$property=$css:inherited-properties"/>
     </xsl:function>
     
     <xsl:function name="css:applies-to" as="xs:boolean">
diff --git a/pipeline-braille-utils/dotify-utils/dotify-formatter/src/main/resources/xml/obfl-css-definition.xsl b/pipeline-braille-utils/dotify-utils/dotify-formatter/src/main/resources/xml/obfl-css-definition.xsl
index 3989cb3f8..3dfb0003e 100644
--- a/pipeline-braille-utils/dotify-utils/dotify-formatter/src/main/resources/xml/obfl-css-definition.xsl
+++ b/pipeline-braille-utils/dotify-utils/dotify-formatter/src/main/resources/xml/obfl-css-definition.xsl
@@ -54,7 +54,9 @@
         <!--
             TODO: move to css:new-definition?
         -->
-        <xsl:if test="not($valid) and not($css:property/@value=('inherit','initial'))">
+        <xsl:if test="not($valid)
+                      and not($css:property/@value=('inherit','initial'))
+                      and not(css:is-inherited($css:property/@name))">
             <xsl:message select="concat($css:property/@name,': ',$css:property/@value,' not supported (display: ',$context/@type,')')"/>
         </xsl:if>
         <xsl:sequence select="$valid"/>