diff --git a/src/Template/ParametersTwigExtension.php b/src/Template/ParametersTwigExtension.php
index 775bea4a5e716f3ab0f6fe463cae9cea8b4af005..db2fa23ff7122ece52e98bd46c90daf5671f402d 100644
--- a/src/Template/ParametersTwigExtension.php
+++ b/src/Template/ParametersTwigExtension.php
@@ -21,7 +21,7 @@ class ParametersTwigExtension extends AbstractExtension {
    */
   public function getFunctions() {
     return [
-      new TwigFunction('p', [$this, 'getRenderableParameter']),
+      new TwigFunction('p', $this->getRenderableParameter(...)),
     ];
   }