diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/add.ts b/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
index e5299d4df1..703ce1e7e8 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
@@ -67,8 +67,8 @@ export const paramDef = {
 			items: {
 				type: 'string',
 			},
-		sortKey: { type: 'string', nullable: true },
 		},
+		sortKey: { type: 'string', nullable: true },
 	},
 	required: ['name', 'fileId'],
 } as const;