diff --git a/src/node-red/cin.js b/src/node-red/cin.js
index b2e6cd0a3cdd0a99c8dbf1c5cf0aaf3a88410486..97ce51273c4aec3f91ca4317c5e224cccc6eb073 100644
--- a/src/node-red/cin.js
+++ b/src/node-red/cin.js
@@ -120,7 +120,7 @@ module.exports = function (RED) {
                 'headers': {
                     'X-M2M-RI': ri,
                     'X-M2M-Origin': RED.nodes.getNode(this.CSE_CONFIG.adminOriginator).originator,
-                    "X-M2M-RVI": "3",
+                    'X-M2M-RVI': '3',
                     'Content-Type': 'application/json;ty=4'
                 },
                 body: JSON.stringify(reqBody)