diff --git a/common/environment/setup/sourcepkg.sh b/common/environment/setup/sourcepkg.sh
index 7d1e7b8e5b3..db42002ff14 100644
--- a/common/environment/setup/sourcepkg.sh
+++ b/common/environment/setup/sourcepkg.sh
@@ -35,4 +35,4 @@ unset -f pre_install do_install post_install
 unset -f do_clean
 
 # deprecated
-unset -v only_for_arch
+unset -v only_for_archs