diff --git a/packages/node_modules/@node-red/runtime/lib/flows/util.js b/packages/node_modules/@node-red/runtime/lib/flows/util.js
index 76dbe2223..e753075b5 100644
--- a/packages/node_modules/@node-red/runtime/lib/flows/util.js
+++ b/packages/node_modules/@node-red/runtime/lib/flows/util.js
@@ -106,14 +106,22 @@ async function evaluateEnvProperties(flow, env, credentials) {
                             result = { value: result, __clone__: true}
                         }
                         evaluatedEnv[name] = result
+                    } else {
+                        evaluatedEnv[name] = undefined
+                        flow.error(`Error evaluating env property '${name}': ${err.toString()}`)
                     }
                     resolve()
                 });
             }))
         } else {
-            value = redUtil.evaluateNodeProperty(value, type, {_flow: flow}, null, null);
-            if (typeof value  === 'object') {
-                value = { value: value, __clone__: true}
+            try {
+                value = redUtil.evaluateNodeProperty(value, type, {_flow: flow}, null, null);
+                if (typeof value  === 'object') {
+                    value = { value: value, __clone__: true}
+                }
+            } catch (err) {
+                value = undefined
+                flow.error(`Error evaluating env property '${name}': ${err.toString()}`)
             }
         }
         evaluatedEnv[name] = value