diff --git a/ts/ngx_core.d.ts b/ts/ngx_core.d.ts
index af8fc4f3d..b459c9293 100644
--- a/ts/ngx_core.d.ts
+++ b/ts/ngx_core.d.ts
@@ -250,7 +250,7 @@ interface NgxFetchOptions {
 declare class SharedMemoryError extends Error {}
 
 type NgxSharedDictValue = string | number;
-type NgxKeyValuePair<V> = { key: string, value: V };
+type NgxKeyValuePair<V> = [string, V];
 
 /**
  * Interface of a dictionary shared among the working processes.