diff --git a/phpstan.neon b/phpstan.neon
index ef6cdd2..b95427a 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -11,6 +11,9 @@ parameters:
     paths:
         - src
 
+    scanDirectories:
+        - /usr/share/icinga-php
+
     ignoreErrors:
         -
             messages: