diff --git a/poky/meta/classes/license_image.bbclass b/poky/meta/classes/license_image.bbclass
index 6fb76be..2cfda81 100644
--- a/poky/meta/classes/license_image.bbclass
+++ b/poky/meta/classes/license_image.bbclass
@@ -40,7 +40,7 @@
     import stat
 
     bad_licenses = (d.getVar("INCOMPATIBLE_LICENSE") or "").split()
-    bad_licenses = map(lambda l: canonical_license(d, l), bad_licenses)
+    bad_licenses = [canonical_license(d, l) for l in bad_licenses]
     bad_licenses = expand_wildcard_licenses(d, bad_licenses)
 
     with open(license_manifest, "w") as license_file: