diff --git a/libraries/src/Installer/InstallerHelper.php b/libraries/src/Installer/InstallerHelper.php
index bbe8d41e1aa41..13541bd978dc0 100644
--- a/libraries/src/Installer/InstallerHelper.php
+++ b/libraries/src/Installer/InstallerHelper.php
@@ -285,9 +285,6 @@ public static function detectType($packageDirectory)
 
 		Log::add(Text::_('JLIB_INSTALLER_ERROR_NOTFINDJOOMLAXMLSETUPFILE'), Log::WARNING, 'jerror');
 
-		// Free up memory.
-		unset($xml);
-
 		return false;
 	}