diff --git a/src/main/ipc-handlers/connection.js b/src/main/ipc-handlers/connection.js
index 5ac0aac5..c539f75a 100644
--- a/src/main/ipc-handlers/connection.js
+++ b/src/main/ipc-handlers/connection.js
@@ -52,7 +52,7 @@ export default connections => {
          return { status: 'success' };
       }
       catch (err) {
-         return { status: 'error', response: err };
+         return { status: 'error', response: err.toString() };
       }
    });
 
diff --git a/src/main/libs/clients/MySQLClient.js b/src/main/libs/clients/MySQLClient.js
index 11714301..be987c32 100644
--- a/src/main/libs/clients/MySQLClient.js
+++ b/src/main/libs/clients/MySQLClient.js
@@ -440,7 +440,9 @@ export class MySQLClient extends AntaresCore {
             charset: field.CHARACTER_SET_NAME,
             collation: field.COLLATION_NAME,
             autoIncrement: field.EXTRA.includes('auto_increment'),
-            onUpdate: field.EXTRA.toLowerCase().includes('on update') ? field.EXTRA.replace('on update', '') : '',
+            onUpdate: field.EXTRA.toLowerCase().includes('on update')
+               ? field.EXTRA.substr(field.EXTRA.indexOf('on update') + 9, field.EXTRA.length)
+               : '',
             comment: field.COLUMN_COMMENT
          };
       });