diff --git a/src/Utils.php b/src/Utils.php
index 5143731c7..055aa944b 100644
--- a/src/Utils.php
+++ b/src/Utils.php
@@ -109,6 +109,10 @@ public static function composerGetExtras($key = 'kint')
             if (\file_exists($installed) && \is_readable($installed)) {
                 $packages = \json_decode(\file_get_contents($installed), true);
 
+                if (!is_array($packages)) {
+                    continue;
+                }
+
                 foreach ($packages as $package) {
                     if (isset($package['extra'][$key]) && \is_array($package['extra'][$key])) {
                         $extras = \array_replace($extras, $package['extra'][$key]);