diff --git a/js/src/@types/shims.d.ts b/js/src/@types/shims.d.ts
new file mode 100644
index 0000000..4cd4d2b
--- /dev/null
+++ b/js/src/@types/shims.d.ts
@@ -0,0 +1,8 @@
+declare module 'flarum/common/models/User' {
+  export default interface User {
+    canSuspend(): boolean;
+    suspendedUntil(): Date | string | null | undefined;
+    suspendReason(): string | null | undefined;
+    suspendMessage(): string | null | undefined;
+  }
+}