diff --git a/Classes/Integration/NetlogixIntegration.php b/Classes/Integration/NetlogixIntegration.php
index cac2f38..48822cc 100644
--- a/Classes/Integration/NetlogixIntegration.php
+++ b/Classes/Integration/NetlogixIntegration.php
@@ -160,7 +160,7 @@ private static function isInApp(string $path): bool
         return true;
     }
 
-    private static function scrubVariablesFromFrame($traceFunction, $frameVariables): array
+    private static function scrubVariablesFromFrame(string $traceFunction, array $frameVariables): array
     {
         if (!$frameVariables) {
             return $frameVariables;