diff --git a/docs/guide/env-and-mode.md b/docs/guide/env-and-mode.md
index 1649feda8c7501..b2b1264e85a8e4 100644
--- a/docs/guide/env-and-mode.md
+++ b/docs/guide/env-and-mode.md
@@ -42,7 +42,7 @@ In addition, environment variables that already exist when Vite is executed have
 `.env` files are loaded at the start of Vite. Restart the server after making changes.
 :::
 
-Loaded env variables are also exposed to your client source code via `import.meta.env`.
+Loaded env variables are also exposed to your client source code via `import.meta.env` as strings.
 
 To prevent accidentally leaking env variables to the client, only variables prefixed with `VITE_` are exposed to your Vite-processed code. e.g. the following file:
 
diff --git a/packages/vite/types/importMeta.d.ts b/packages/vite/types/importMeta.d.ts
index 9b57fd120a7ba9..900b975d37d6ad 100644
--- a/packages/vite/types/importMeta.d.ts
+++ b/packages/vite/types/importMeta.d.ts
@@ -36,7 +36,7 @@ interface ImportMeta {
 }
 
 interface ImportMetaEnv {
-  [key: string]: string | boolean | undefined
+  [key: string]: any
   BASE_URL: string
   MODE: string
   DEV: boolean