1 files changed, 1 insertions, 1 deletions

diff --git a/bin/return-assignment b/bin/return-assignment
index 2f60612..888ebbb 100755
--- a/bin/return-assignment
+++ b/bin/return-assignment
@@ -47,7 +47,7 @@ if [ "$5" = 'ERROR' ]; then
   fi
 
   # shellcheck disable=SC2154
-  if ! grep -qxF "${slave}" "${work_dir}/package-states/$1.$2.$3.$4.locked"; then
+  if [ "${slave}" != "$(head -n1 "${work_dir}/package-states/$1.$2.$3.$4.locked")" ]; then
     # whoops, this package is built by someone else
     exit 0
   fi