diff --git a/NEWS b/NEWS
index bc14bf06e8c..90aab820b14 100644
--- a/NEWS
+++ b/NEWS
@@ -19,6 +19,7 @@ PHP                                                                        NEWS
 
 - Phar:
   . Fix memory leak of argument in webPhar. (nielsdos)
+  . Fix memory leak when setAlias() fails. (nielsdos)
 
 - Random:
   . Fix Randomizer::__serialize() w.r.t. INDIRECTs. (nielsdos)
diff --git a/ext/phar/phar_object.c b/ext/phar/phar_object.c
index c18924aefe4..5970a9e5630 100644
--- a/ext/phar/phar_object.c
+++ b/ext/phar/phar_object.c
@@ -2778,6 +2778,7 @@ valid_alias:
 	phar_flush(phar_obj->archive, &error);
 
 	if (error) {
+		pefree(phar_obj->archive->alias, phar_obj->archive->is_persistent);
 		phar_obj->archive->alias = oldalias;
 		phar_obj->archive->alias_len = oldalias_len;
 		phar_obj->archive->is_temporary_alias = old_temp;