diff --git a/nym-node-status-api/nym-node-status-api/migrations_pg/20260415000000_gateways_ports_check.sql b/nym-node-status-api/nym-node-status-api/migrations_pg/20260415000000_gateways_ports_check.sql
index e521cb2aa5..f506b093f5 100644
--- a/nym-node-status-api/nym-node-status-api/migrations_pg/20260415000000_gateways_ports_check.sql
+++ b/nym-node-status-api/nym-node-status-api/migrations_pg/20260415000000_gateways_ports_check.sql
@@ -4,6 +4,7 @@ UPDATE gateways
 SET ports_check = (last_probe_result::jsonb -> 'ports_check')
 WHERE last_probe_result IS NOT NULL
   AND btrim(last_probe_result) <> ''
+  AND last_probe_result ~ '^[\[{]'
   AND last_probe_result::jsonb ? 'ports_check'
   AND ports_check IS NULL;
 
@@ -11,4 +12,5 @@ UPDATE gateways
 SET last_probe_result = (last_probe_result::jsonb - 'ports_check')::text
 WHERE last_probe_result IS NOT NULL
   AND btrim(last_probe_result) <> ''
+  AND last_probe_result ~ '^[\[{]'
   AND last_probe_result::jsonb ? 'ports_check';
\ No newline at end of file