Fix #4137
diff --git a/system/core/Exceptions.php b/system/core/Exceptions.php
index fc25f57..d8f62c0 100644
--- a/system/core/Exceptions.php
+++ b/system/core/Exceptions.php
@@ -187,7 +187,7 @@
 
 	// --------------------------------------------------------------------
 
-	public function show_exception(Exception $exception)
+	public function show_exception($exception)
 	{
 		$templates_path = config_item('error_views_path');
 		if (empty($templates_path))