diff --git a/lib/dialects/oracle/utils.js b/lib/dialects/oracle/utils.js
index dee38eb18d..5797f16f77 100644
--- a/lib/dialects/oracle/utils.js
+++ b/lib/dialects/oracle/utils.js
@@ -93,6 +93,7 @@ function isConnectionError(err) {
     'ORA-56600', // an illegal OCI function call was issued
     'NJS-024',
     'NJS-003',
+    'NJS-500',
   ].some(function (prefix) {
     return err.message.indexOf(prefix) === 0;
   });