diff --git a/app/voicemails/app_defaults.php b/app/voicemails/app_defaults.php
index c40022f092..18c0433c58 100644
--- a/app/voicemails/app_defaults.php
+++ b/app/voicemails/app_defaults.php
@@ -86,8 +86,8 @@ if ($domains_processed == 1) {
 	}
 
 	// clear variables
-	unset($switch_phrases_dir_initial, $switch_phrases_dir_current, $switch_phrases_dir_correct);
-	unset($folder_contents, $language_abbreviation, $language_xml_path, $language_xml_content, $voicemail_xml_source, $voicemail_xml_target);
+	unset($switch_configuration_dir, $switch_phrases_dir_initial, $switch_phrases_dir_current, $switch_phrases_dir_correct);
+	unset($switch_xml_content, $folder_contents, $language_abbreviation, $language_xml_path, $language_xml_content, $voicemail_xml_source, $voicemail_xml_target);
 
 }