diff --git a/parallel_test.sh b/parallel_test.sh
index 339120d..cf3174b 100755
--- a/parallel_test.sh
+++ b/parallel_test.sh
@@ -30,6 +30,7 @@ test_logs+=("logs/cloudron-update-test.log")
 
 # stream all the logs (to stderr so that it's not in email but in deploy logs)
 tail -f ${test_logs[*]} >&2 &
+tail_pid=$!
 
 # wait for tests to finish
 fail=0
@@ -38,6 +39,8 @@ for pid in "${test_pids[@]}"; do
     wait $pid || let "fail+=1"
 done
 
+kill -9 "${tail_pid}"
+
 echo
 echo
 for t in "${tests[@]}"; do