diff --git a/src/current.ts b/src/current.ts
index c13cd1c..7a61372 100644
--- a/src/current.ts
+++ b/src/current.ts
@@ -2,6 +2,7 @@ import { camelize } from "./util"
 
 type CurrentValueObject = { [key: string]: string }
 type CurrentValue = string | CurrentValueObject
+type CurrentType = { [key: string]: CurrentValue | undefined }
 
 const currentProxy = {
   get(_target: object, propertyName: string): CurrentValue {
@@ -25,7 +26,7 @@ const currentProxy = {
   },
 }
 
-export const Current = new Proxy({}, currentProxy)
+export const Current: CurrentType = new Proxy({}, currentProxy)
 export const config = {
   prefix: "current",
 }
diff --git a/tsconfig.json b/tsconfig.json
index c1eaa6d..f9a62c4 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -17,5 +17,8 @@
     "typeRoots": [
       "./node_modules/@types"
     ]
-  }
+  },
+  "include": [
+    "src/**/*"
+  ],
 }