diff --git a/package.json b/package.json
index 88e6188..d64f2e3 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,12 @@
     "test": "node --test",
     "test:coverage": "c8 --reporter=lcov --reports-dir=coverage/js node --test"
   },
+  "c8": {
+    "exclude": [
+      "test/**",
+      "test-support/**"
+    ]
+  },
   "dependencies": {
     "@file-type/av": "0.2.0",
     "express": "5.2.1",