diff --git a/poky/meta-poky/conf/distro/poky-tiny.conf b/poky/meta-poky/conf/distro/poky-tiny.conf
index 32c2ec3..24bcbee 100644
--- a/poky/meta-poky/conf/distro/poky-tiny.conf
+++ b/poky/meta-poky/conf/distro/poky-tiny.conf
@@ -125,4 +125,4 @@
 
 # If shadow-base is brought into the image, logins will fail because it
 # doesn't have the heuristics to work when CONFIG_MULTIUSER is unset.
-PACKAGE_EXCLUDE:poky-tiny = "shadow-base"
+PACKAGE_EXCLUDE += "shadow-base"