diff --git a/.changeset/itchy-camels-cough.md b/.changeset/itchy-camels-cough.md
new file mode 100644
index 0000000000..2ec70c945c
--- /dev/null
+++ b/.changeset/itchy-camels-cough.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-auth-backend-module-oauth2-proxy-provider': patch
+---
+
+Change provider id from `oauth2ProxyProvider` to `oauth2Proxy`
diff --git a/plugins/auth-backend-module-oauth2-proxy-provider/src/module.ts b/plugins/auth-backend-module-oauth2-proxy-provider/src/module.ts
index 9ca6be4688..70ce506d73 100644
--- a/plugins/auth-backend-module-oauth2-proxy-provider/src/module.ts
+++ b/plugins/auth-backend-module-oauth2-proxy-provider/src/module.ts
@@ -34,7 +34,7 @@ export const authModuleOauth2ProxyProvider = createBackendModule({
       },
       async init({ providers }) {
         providers.registerProvider({
-          providerId: 'oauth2ProxyProvider',
+          providerId: 'oauth2Proxy',
           factory: createProxyAuthProviderFactory({
             authenticator: oauth2ProxyAuthenticator,
             signInResolverFactories: {