diff --git a/lib/Cake/Core/Configure.php b/lib/Cake/Core/Configure.php
index 2ba263e42b5..bb9bf0237f6 100644
--- a/lib/Cake/Core/Configure.php
+++ b/lib/Cake/Core/Configure.php
@@ -99,12 +99,6 @@ public static function bootstrap($boot = true) {
 				static::$_values['Error'],
 				static::$_values['Exception']
 			);
-
-			// Preload Debugger + String in case of E_STRICT errors when loading files.
-			if (self::$_values['debug'] > 0) {
-				class_exists('Cake\Utility\Debugger');
-				class_exists('Cake\Utility\String');
-			}
 		}
 	}