diff --git a/extensions/oidc/deployment/src/main/resources/dev-ui/qwc-oidc-provider.js b/extensions/oidc/deployment/src/main/resources/dev-ui/qwc-oidc-provider.js
index 0f3ab5f10ea74..fd55fda88612b 100644
--- a/extensions/oidc/deployment/src/main/resources/dev-ui/qwc-oidc-provider.js
+++ b/extensions/oidc/deployment/src/main/resources/dev-ui/qwc-oidc-provider.js
@@ -493,6 +493,7 @@ export class QwcOidcProvider extends QwcHotReloadElement {
         this.jsonRpc
             .testServiceWithPassword({
                 tokenUrl: this._getTokenUrl(),
+                serviceUrl: null,
                 clientId: this._getClientId(),
                 clientSecret: this._getClientSecret(),
                 username: this._passwordGrantUsername,
@@ -510,6 +511,7 @@ export class QwcOidcProvider extends QwcHotReloadElement {
         this.jsonRpc
             .testServiceWithPassword({
                 tokenUrl: this._getTokenUrl(),
+                serviceUrl: null,
                 clientId: this._getClientId(),
                 clientSecret: this._getClientSecret(),
                 username: this._passwordGrantUsername,
@@ -542,6 +544,7 @@ export class QwcOidcProvider extends QwcHotReloadElement {
         this.jsonRpc
             .testServiceWithClientCred({
                 tokenUrl: this._getTokenUrl(),
+                serviceUrl: null,
                 clientId: this._getClientId(),
                 clientSecret: this._getClientSecret()
             })
@@ -557,6 +560,7 @@ export class QwcOidcProvider extends QwcHotReloadElement {
         this.jsonRpc
             .testServiceWithClientCred({
                 tokenUrl: this._getTokenUrl(),
+                serviceUrl: null,
                 clientId: this._getClientId(),
                 clientSecret: this._getClientSecret()
             })