diff --git a/tools/test/test-setup.sh b/tools/test/test-setup.sh
index 05a0d26223c3c8..92e9a38c5ed1ca 100755
--- a/tools/test/test-setup.sh
+++ b/tools/test/test-setup.sh
@@ -270,6 +270,8 @@ if [[ "${EXPERIMENTAL_SPLIT_XML_GENERATION}" == "1" ]]; then
   trap 'echo "-- Test timed out at $(date +"%F %T %Z") --"' SIGTERM
 else
   for signal in $signals; do
+    # SIGCHLD is expected when a subprocess dies
+    [ "${signal}" = "SIGCHLD" ] && continue
     trap "write_xml_output_file ${signal}" ${signal}
   done
 fi