diff --git a/composer.json b/composer.json
index 16db14d..c250cf8 100644
--- a/composer.json
+++ b/composer.json
@@ -46,7 +46,8 @@
     "autoload-dev": {
         "psr-4": {
             "Churn\\Tests\\": "tests"
-        }
+        },
+        "exclude-from-classmap": ["/tests/Unit/Assets", "/tests/Unit/Assets2"]
     },
     "bin": [
         "bin/churn"