diff --git a/tsconfig.json b/tsconfig.json
index 327ed39..7406637 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -25,7 +25,7 @@
     "esm": true,
   },
 
-  "include": ["./src/**/*.ts"],
+  "include": ["./src/**/*.ts", "./test/**/*.ts"],
 
   "exclude": ["node_modules"],
 }