diff --git a/src/Panel.php b/src/Panel.php
index 5f19be5..f276d01 100644
--- a/src/Panel.php
+++ b/src/Panel.php
@@ -60,7 +60,10 @@ public function getPanel()
 		$installed = $this->decode($lockFile);
 
 		if ($this->error === NULL) {
+			$required = array_filter($required);
+			$installed = array_filter($installed);
 			$required += ['require' => [], 'require-dev' => []];
+			$installed += ['packages' => [], 'packages-dev' => []];
 			$data = [
 				'Packages' => self::format($installed['packages'], $required['require']),
 				'Dev Packages' => self::format($installed['packages-dev'], $required['require-dev']),