diff --git a/tools/phpstan.config.src.neon b/tools/phpstan.config.src.neon
index 5939f9e..ca3dead 100644
--- a/tools/phpstan.config.src.neon
+++ b/tools/phpstan.config.src.neon
@@ -3,3 +3,6 @@ parameters:
 
     paths:
         - ../src/
+
+    bootstrapFiles:
+        - phpstan-bootstrap.php