diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index ef2b38aeaf..9c9f14a99a 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -453,7 +453,7 @@ python () {
 
         rm_tmp_images = set()
         def gen_conversion_cmds(bt):
-            for ctype in ctypes:
+            for ctype in sorted(ctypes):
                 if bt.endswith("." + ctype):
                     type = bt[0:-len(ctype) - 1]
                     if type.startswith("debugfs_"):