diff --git a/package.json b/package.json
index b842206..cbd75d0 100644
--- a/package.json
+++ b/package.json
@@ -19,8 +19,9 @@
     "lint:fix": "ts-standard --fix | snazzy",
     "prepublish": "npm run build",
     "postversion": "git push --tags && git push origin main && echo \"Successfully published new package version $npm_package_version\"",
-    "preversion": "npm run lint && npm run test && npm run build",
-    "test": "tap test/*.test.ts --coverage"
+    "preversion": "npm run lint && npm run test && npm run test:d && npm run build",
+    "test": "tap test/*.test.ts --coverage",
+    "test:d": "tsd . -f test/types"
   },
   "repository": {
     "type": "git",
diff --git a/test/types/index.test-d.ts b/test/types/index.test-d.ts
index 4daa31b..20576ed 100644
--- a/test/types/index.test-d.ts
+++ b/test/types/index.test-d.ts
@@ -2,7 +2,7 @@ import { Client } from '@bugsnag/js'
 import fastify from 'fastify'
 import { expectType } from 'tsd'
 
-import plugin from '../../src/index'
+import plugin from '../../src'
 
 const app = fastify()