diff --git a/phpstan.neon b/phpstan.neon
index 2e552471..e05600cf 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,6 +1,7 @@
 parameters:
   level: max
   paths:
+    - sl-src
     - src
     - tests
   excludePaths:
diff --git a/psalm.xml b/psalm.xml
index 016a5f45..59c3c010 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -8,6 +8,7 @@
     findUnusedCode="false"
 >
     <projectFiles>
+        <directory name="sl-src" />
         <directory name="src" />
         <ignoreFiles>
             <directory name="vendor" />