diff --git a/meta/classes/testexport.bbclass b/meta/classes/testexport.bbclass
index b503c8d357..98468c96fd 100644
--- a/meta/classes/testexport.bbclass
+++ b/meta/classes/testexport.bbclass
@@ -178,4 +178,4 @@ def testexport_create_tarball(d, tar_name, src_dir):
     tar.close()
     os.chdir(current_dir)
 
-inherit testimage
+IMAGE_CLASSES += "testimage"