2 files changed, 3 insertions, 2 deletions

diff --git a/bin/build-packages b/bin/build-packages
index ef24b5e..76c1b73 100755
--- a/bin/build-packages
+++ b/bin/build-packages
@@ -367,7 +367,7 @@ while [ "${count}" -ne 0 ] && \
           >&2 echo 'ERROR: Cannot lock ping-to-master - this should not happen.'
           exit 2
         fi
-        "${base_dir}/bin/ping-to-master" "$$" "${tmp_dir}" &
+        "${base_dir}/bin/ping-to-master" "$$" "${tmp_dir}" "${work_dir}/ping-build-master.lock" &
       fi
       success=false
 
diff --git a/bin/ping-to-master b/bin/ping-to-master
index 0b72935..b7b1eee 100755
--- a/bin/ping-to-master
+++ b/bin/ping-to-master
@@ -14,8 +14,9 @@
 
 parent_pid="$1"
 parent_tmp_dir="$2"
+lock_file="$3"
 
-exec 9> "${work_dir}/ping-build-master.lock"
+exec 9> "${lock_file}"
 
 while kill -0 "${parent_pid}" && \
   [ -f "${parent_tmp_dir}/.ping-build-master" ]; do