diff --git a/src/main/resources/com/cloudbees/plugins/credentials/CredentialsParameterDefinition/config.jelly b/src/main/resources/com/cloudbees/plugins/credentials/CredentialsParameterDefinition/config.jelly
index 31a659d44..67348f58a 100644
--- a/src/main/resources/com/cloudbees/plugins/credentials/CredentialsParameterDefinition/config.jelly
+++ b/src/main/resources/com/cloudbees/plugins/credentials/CredentialsParameterDefinition/config.jelly
@@ -40,6 +40,6 @@
     <c:select/>
   </f:entry>
   <f:entry field="description" title="${%Description}" help="/help/parameter/description.html">
-    <f:textarea/>
+    <f:textarea codemirror-mode="${app.markupFormatter.codeMirrorMode}" codemirror-config="${app.markupFormatter.codeMirrorConfig}" previewEndpoint="/markupFormatter/previewDescription" />
   </f:entry>
 </j:jelly>