diff --git a/test-data/phony-guests/make-fedora-img.pl b/test-data/phony-guests/make-fedora-img.pl
index 90492b814..27b154f9d 100755
--- a/test-data/phony-guests/make-fedora-img.pl
+++ b/test-data/phony-guests/make-fedora-img.pl
@@ -195,7 +195,7 @@ EOF
 
     # Put LUKS on the second partition.
     $g->luks_format ('/dev/sda2', 'FEDORA', 0);
-    $g->luks_open ('/dev/sda2', 'FEDORA', 'luks');
+    $g->cryptsetup_open ('/dev/sda2', 'FEDORA', 'luks');
 
     init_lvm_root ('/dev/mapper/luks');
 }