diff --git a/e2e-tests/functions b/e2e-tests/functions
index 9892f18ee..bee9f0422 100755
--- a/e2e-tests/functions
+++ b/e2e-tests/functions
@@ -622,7 +622,7 @@ compare_mysql_cmd() {
 
 	run_mysql "$command" "$uri" \
 		>$tmp_dir/${command_id}.sql
-	if [ ! -s "$tmp_dir/${command_id}.sql" ]; then
+	if [[ ! -s "$tmp_dir/${command_id}.sql" || $(grep 'Unknown MySQL server host' "$tmp_dir/${command_id}.sql") ]]; then
 		sleep 20
 		run_mysql "$command" "$uri" \
 			>$tmp_dir/${command_id}.sql