diff --git a/source/engine/mecanisms.js b/source/engine/mecanisms.js
index 284322422..c10066194 100644
--- a/source/engine/mecanisms.js
+++ b/source/engine/mecanisms.js
@@ -4,7 +4,7 @@ import {anyNull, val} from './traverse-common-functions'
 import {Node, Leaf} from './traverse-common-jsx'
 import {makeJsx, evaluateNode, rewriteNode, evaluateArray, evaluateArrayWithFilter, evaluateObject, parseObject, collectNodeMissing} from './evaluation'
 
-let constantNode = constant => ({nodeValue: constant})
+let constantNode = constant => ({nodeValue: constant, jsx:  nodeValue => <span className="value">{nodeValue}</span>})
 
 let decompose = (recurse, k, v) => {
 	let