diff --git a/services/loopback/common/methods/client/getTransactions.js b/services/loopback/common/methods/client/getTransactions.js
index 764e0df7d..b86421a95 100644
--- a/services/loopback/common/methods/client/getTransactions.js
+++ b/services/loopback/common/methods/client/getTransactions.js
@@ -22,6 +22,7 @@ module.exports = Self => {
     });
 
     Self.getTransactions = async filter => {
+        let conn = Self.dataSource.connector;
         let stmt = new ParameterizedSQL(`
             SELECT 
                     t.id, 
@@ -36,7 +37,7 @@ module.exports = Self => {
                     LEFT JOIN hedera.tpvResponse tt ON tt.id = t.response
                     LEFT JOIN hedera.tpvError te ON te.code = errorCode`);
 
-        stmt.merge(Self.buildSuffix(filter, 't'));
+        stmt.merge(conn.makeSuffix(filter, 't'));
 
         return await Self.rawStmt(stmt);
     };
diff --git a/services/ticket/common/methods/expedition/filter.js b/services/ticket/common/methods/expedition/filter.js
index a51006ffd..ef5164c50 100644
--- a/services/ticket/common/methods/expedition/filter.js
+++ b/services/ticket/common/methods/expedition/filter.js
@@ -1,6 +1,6 @@
 const ParameterizedSQL = require('vn-loopback/node_modules/loopback-connector').ParameterizedSQL;
 
-module.exports = (Self) => {
+module.exports = Self => {
     Self.remoteMethod('filter', {
         description: 'Find all instances of the model matched by filter from the data source.',
         accessType: 'READ',
@@ -22,7 +22,7 @@ module.exports = (Self) => {
         },
     });
 
-    Self.filter = async (filter) => {
+    Self.filter = async filter => {
         const stmt = new ParameterizedSQL(
             `SELECT 
                 e.id,