diff --git a/ccm-core/web/themes/foundry/foundry/lib/template-tags/content-items/assets/file-attachments.xsl b/ccm-core/web/themes/foundry/foundry/lib/template-tags/content-items/assets/file-attachments.xsl
index 3cc75d63b..537c5124c 100644
--- a/ccm-core/web/themes/foundry/foundry/lib/template-tags/content-items/assets/file-attachments.xsl
+++ b/ccm-core/web/themes/foundry/foundry/lib/template-tags/content-items/assets/file-attachments.xsl
@@ -61,7 +61,7 @@
         </xsl:variable>
         
         <xsl:for-each select="$contentitem-tree/fileAttachments">
-            <xsl:sort select="fileOrder"/>
+            <xsl:sort select="fileOrder" data-type="number" />
             
             <!--<pre>
                 <xsl:value-of select="concat('current elem = ', name(current()))"/>
@@ -178,4 +178,4 @@
         
     </xsl:template>
     
-</xsl:stylesheet>
\ No newline at end of file
+</xsl:stylesheet>