diff --git a/cli/src/api/open-api/api.ts b/cli/src/api/open-api/api.ts
index 688fc7a48..809f3f007 100644
--- a/cli/src/api/open-api/api.ts
+++ b/cli/src/api/open-api/api.ts
@@ -2966,10 +2966,10 @@ export interface ServerStatsResponseDto {
 export interface ServerThemeDto {
     /**
      * 
-     * @type {SystemConfigThemeDto}
+     * @type {string}
      * @memberof ServerThemeDto
      */
-    'theme': SystemConfigThemeDto;
+    'customCss': string;
 }
 /**
  * 
diff --git a/mobile/openapi/doc/ServerThemeDto.md b/mobile/openapi/doc/ServerThemeDto.md
index d79f55cf3..506f60b79 100644
Binary files a/mobile/openapi/doc/ServerThemeDto.md and b/mobile/openapi/doc/ServerThemeDto.md differ
diff --git a/mobile/openapi/lib/model/server_theme_dto.dart b/mobile/openapi/lib/model/server_theme_dto.dart
index e803c5880..f31596033 100644
Binary files a/mobile/openapi/lib/model/server_theme_dto.dart and b/mobile/openapi/lib/model/server_theme_dto.dart differ
diff --git a/mobile/openapi/test/server_theme_dto_test.dart b/mobile/openapi/test/server_theme_dto_test.dart
index c1f63ea49..d340b8f55 100644
Binary files a/mobile/openapi/test/server_theme_dto_test.dart and b/mobile/openapi/test/server_theme_dto_test.dart differ
diff --git a/server/immich-openapi-specs.json b/server/immich-openapi-specs.json
index 58e0e3055..d934d50b3 100644
--- a/server/immich-openapi-specs.json
+++ b/server/immich-openapi-specs.json
@@ -7836,12 +7836,12 @@
       },
       "ServerThemeDto": {
         "properties": {
-          "theme": {
-            "$ref": "#/components/schemas/SystemConfigThemeDto"
+          "customCss": {
+            "type": "string"
           }
         },
         "required": [
-          "theme"
+          "customCss"
         ],
         "type": "object"
       },
diff --git a/server/src/domain/server-info/server-info.dto.ts b/server/src/domain/server-info/server-info.dto.ts
index 40a5f3a47..846458223 100644
--- a/server/src/domain/server-info/server-info.dto.ts
+++ b/server/src/domain/server-info/server-info.dto.ts
@@ -80,9 +80,7 @@ export class ServerMediaTypesResponseDto {
   sidecar!: string[];
 }
 
-export class ServerThemeDto {
-  theme!: SystemConfigThemeDto;
-}
+export class ServerThemeDto extends SystemConfigThemeDto {}
 
 export class ServerConfigDto {
   oauthButtonText!: string;
diff --git a/server/src/domain/server-info/server-info.service.ts b/server/src/domain/server-info/server-info.service.ts
index bb1b22729..f2d312343 100644
--- a/server/src/domain/server-info/server-info.service.ts
+++ b/server/src/domain/server-info/server-info.service.ts
@@ -72,7 +72,7 @@ export class ServerInfoService {
 
   async getTheme() {
     const { theme } = await this.configCore.getConfig();
-    return { theme };
+    return theme;
   }
 
   async getConfig(): Promise<ServerConfigDto> {
diff --git a/server/test/e2e/server-info.e2e-spec.ts b/server/test/e2e/server-info.e2e-spec.ts
index 8f776187f..a19c6235e 100644
--- a/server/test/e2e/server-info.e2e-spec.ts
+++ b/server/test/e2e/server-info.e2e-spec.ts
@@ -161,9 +161,7 @@ describe(`${ServerInfoController.name} (e2e)`, () => {
       const { status, body } = await request(server).get('/server-info/theme');
       expect(status).toBe(200);
       expect(body).toEqual({
-        theme: {
-          customCss: '',
-        },
+        customCss: '',
       });
     });
   });
diff --git a/web/src/api/open-api/api.ts b/web/src/api/open-api/api.ts
index 688fc7a48..809f3f007 100644
--- a/web/src/api/open-api/api.ts
+++ b/web/src/api/open-api/api.ts
@@ -2966,10 +2966,10 @@ export interface ServerStatsResponseDto {
 export interface ServerThemeDto {
     /**
      * 
-     * @type {SystemConfigThemeDto}
+     * @type {string}
      * @memberof ServerThemeDto
      */
-    'theme': SystemConfigThemeDto;
+    'customCss': string;
 }
 /**
  * 
diff --git a/web/src/routes/custom.css/+server.ts b/web/src/routes/custom.css/+server.ts
index d5ea304cd..e71728f2a 100644
--- a/web/src/routes/custom.css/+server.ts
+++ b/web/src/routes/custom.css/+server.ts
@@ -1,9 +1,7 @@
 import { RequestHandler, text } from '@sveltejs/kit';
 export const GET = (async ({ locals: { api } }) => {
   const {
-    data: {
-      theme: { customCss },
-    },
+    data: { customCss },
   } = await api.serverInfoApi.getTheme();
   return text(customCss, {
     headers: {