diff --git a/src/Domain/InsightLoader/SniffLoader.php b/src/Domain/InsightLoader/SniffLoader.php
index 6d830287..8898e3f7 100644
--- a/src/Domain/InsightLoader/SniffLoader.php
+++ b/src/Domain/InsightLoader/SniffLoader.php
@@ -29,7 +29,7 @@ public function load(string $insightClass, string $dir, array $config, Collector
         $sniff = new $insightClass();
 
         foreach ($config as $property => $value) {
-            $sniff->{$property} = $value;
+            $sniff->$property = $value;
         }
 
         return new SniffDecorator($sniff, $dir);