diff --git a/src/Dev/Backtrace.php b/src/Dev/Backtrace.php
index 9139534f4..17006751e 100644
--- a/src/Dev/Backtrace.php
+++ b/src/Dev/Backtrace.php
@@ -122,7 +122,7 @@ class Backtrace
                 }
             }
             if ($match) {
-                foreach ($bt[$i]['args'] as $j => $arg) {
+                foreach ($bt[$i]['args'] ?? [] as $j => $arg) {
                     $bt[$i]['args'][$j] = '<filtered>';
                 }
             }