diff --git a/poky/meta/recipes-core/systemd/systemd-machine-units_1.0.bb b/poky/meta/recipes-core/systemd/systemd-machine-units_1.0.bb
index 02756f4..12f27d6 100644
--- a/poky/meta/recipes-core/systemd/systemd-machine-units_1.0.bb
+++ b/poky/meta/recipes-core/systemd/systemd-machine-units_1.0.bb
@@ -8,6 +8,6 @@
 PR = "r19"
 
 inherit systemd
-SYSTEMD_SERVICE_${PN} = ""
+SYSTEMD_SERVICE:${PN} = ""
 
-ALLOW_EMPTY_${PN} = "1"
+ALLOW_EMPTY:${PN} = "1"