diff --git a/src/frontend/tests/regression/run.sh b/src/frontend/tests/regression/run.sh
index 68dcc3aa..20b87582 100755
--- a/src/frontend/tests/regression/run.sh
+++ b/src/frontend/tests/regression/run.sh
@@ -138,11 +138,15 @@ assert_contains     "queues deactive"       "deactive"  $XCE queues deactive nor
 echo ""
 echo "--- Jobs ---"
 
-# submit returns a job ID
-SUBMIT_OUT=$($XCE jobs submit -J regression_test -q normal sleep 1 2>&1)
-if echo "$SUBMIT_OUT" | grep -qE "Job <[0-9]+> is submitted"; then
+# submit returns a job ID, printed in xcecli's dashed form
+# {cluster}-{apiserver}-{timestamp}-{sequence} (format.FormatJobID), which
+# `jobs kill` accepts back (bug-1765: this used to expect plain digits).
+# stdin is /dev/null: `jobs submit` reads a job script from stdin whenever it
+# is a pipe, so run from a script or CI with an open pipe it waited forever.
+SUBMIT_OUT=$($XCE jobs submit -J regression_test -q normal sleep 1 </dev/null 2>&1)
+if echo "$SUBMIT_OUT" | grep -qE "Job <[0-9]+(-[0-9]+){3}> is submitted"; then
     pass "jobs submit"
-    JOB_ID=$(echo "$SUBMIT_OUT" | grep -oE '[0-9]{10,}' | head -1)
+    JOB_ID=$(echo "$SUBMIT_OUT" | sed -nE 's/.*Job <([0-9]+(-[0-9]+){3})> is submitted.*/\1/p' | head -1)
 else
     fail "jobs submit" "unexpected output: $SUBMIT_OUT"
     JOB_ID=""