diff --git a/composer.json b/composer.json
index adfbcd0..a1226f3 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,8 @@
 		"nette/utils": "^3.0"
 	},
 	"require-dev": {
-		"phpstan/phpstan-shim": "^0.11.12"
+		"phpstan/phpstan-shim": "^0.11.12",
+		"phpstan/phpstan-nette": "^0.11.1"
 	},
 	"autoload": {
 		"psr-4": {
diff --git a/phpstan.neon b/phpstan.neon
index e69de29..18bee18 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -0,0 +1,2 @@
+includes:
+    - vendor/phpstan/phpstan-nette/extension.neon