diff --git a/api/apps/api/src/modules/projects/project-cost-surface.controller.ts b/api/apps/api/src/modules/projects/project-cost-surface.controller.ts
index 7dd146ea48..c9975eab1c 100644
--- a/api/apps/api/src/modules/projects/project-cost-surface.controller.ts
+++ b/api/apps/api/src/modules/projects/project-cost-surface.controller.ts
@@ -261,7 +261,6 @@ export class ProjectCostSurfaceController {
 
   @ImplementsAcl()
   @UseGuards(JwtAuthGuard)
-  @TilesOpenApi()
   @ApiOperation({
     description: 'Get cost surface tiles.',
   })