diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/Config/AbstractConfig.php b/snappymail/v/0.0.0/app/libraries/RainLoop/Config/AbstractConfig.php
index 8333befa7..aeae28f1c 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/Config/AbstractConfig.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/Config/AbstractConfig.php
@@ -41,7 +41,7 @@ abstract class AbstractConfig
 		$this->sFileHeader = $sFileHeader;
 		$this->aData = $this->defaultValues();
 
-		$this->bUseApcCache = APP_USE_APC_CACHE &&
+		$this->bUseApcCache = APP_USE_APCU_CACHE &&
 			\MailSo\Base\Utils::FunctionExistsAndEnabled(array('apcu_fetch', 'apcu_store'));
 	}