diff --git a/src/modules/pages/maintain/forms/components/form.jdbc.ts b/src/modules/pages/maintain/forms/components/form.jdbc.ts
index 9cc9c3f..e9d16d4 100644
--- a/src/modules/pages/maintain/forms/components/form.jdbc.ts
+++ b/src/modules/pages/maintain/forms/components/form.jdbc.ts
@@ -681,7 +681,7 @@ export class FormJdbc extends BI.Widget {
                     value: item,
                 };
             }));
-            this.form.schema.setValue(value ? value : schemas[0]);
+            this.form.schema.setValue(value && schemas.some(item => item === value) ? value : schemas[0]);
         }
     }