diff --git a/src/core/index.ts b/src/core/index.ts
index 3e1386d0..dff28680 100644
--- a/src/core/index.ts
+++ b/src/core/index.ts
@@ -89,7 +89,7 @@ export class NapCatCore {
     NapCatTempPath: string = '';
     apis: StableNTApiWrapper;
     // runtime info, not readonly
-    selfInfo: Partial<SelfInfo>;
+    selfInfo: SelfInfo;
     util: NodeQQNTWrapperUtil;
     configLoader: NapCatConfigLoader;