diff --git a/nodes/zammad-config.js b/nodes/zammad-config.js
index e8195c6..3e54b8c 100644
--- a/nodes/zammad-config.js
+++ b/nodes/zammad-config.js
@@ -10,9 +10,9 @@ module.exports = function (RED) {
 
         node.baseUrl = (config.baseUrl || "https://example.com/api/v1").replace(/\/+$/, "");
         node.useToken = config.useToken !== false;
-        node.token = config.token || "";
-        node.username = config.username || "";
-        node.password = config.password || "";
+        node.token = (this.credentials && this.credentials.token) || config.token || "";
+        node.username = (this.credentials && this.credentials.username) || config.username || "";
+        node.password = (this.credentials && this.credentials.password) || config.password || "";
 
         node.sendRequest = function (method, path, body, msgHeaders, callback) {
             const url = new URL(node.baseUrl + path);
@@ -55,5 +55,11 @@ module.exports = function (RED) {
         };
     }
 
-    RED.nodes.registerType("zammad-config", ZammadConfigNode);
+    RED.nodes.registerType("zammad-config", ZammadConfigNode, {
+        credentials: {
+            token: { type: "text" },
+            username: { type: "text" },
+            password: { type: "password" }
+        }
+    });
 };