diff --git a/index.d.ts b/index.d.ts
index 9a8c3e8..f36b5b0 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -5,6 +5,7 @@ declare global {
 
   interface Env {
     ASSETS: Fetcher;
+    D1: D1Database;
     DATA: KVNamespace;
     [k: string]: string;
   }