diff --git a/index.js b/index.js
index 6e6a397..dffbf5b 100644
--- a/index.js
+++ b/index.js
@@ -164,9 +164,9 @@ function mountSwagger(loopbackApplication, swaggerApp, opts) {
               } else {
                 result[newKey].get.parameters = [];
               }
-              var nonElasticOperationIds = ['.prototype.__get__model', '.prototype.__get__user', '.prototype.__get__tenant'];
-              var nonElasticOperationId = nonElasticOperationIds.filter(opId => _.includes(result[newKey].get.operationId, opId))[0];
-              if (!nonElasticOperationId && _.endsWith(newKey, '/change-stream') && _.isArray(result[newKey].get.parameters) && _.findIndex(result[newKey].get.parameters, { name: 'getFrom', enum: ['elastic'] }) === -1) {
+              let nonElasticOperationIds = ['.prototype.__get__model', '.prototype.__get__user', '.prototype.__get__tenant'];
+              let nonElasticOperationId = nonElasticOperationIds.filter(opId => _.includes(result[newKey].get.operationId, opId))[0];
+              if (!nonElasticOperationId && !_.endsWith(newKey, '/change-stream') && _.isArray(result[newKey].get.parameters) && _.findIndex(result[newKey].get.parameters, { name: 'getFrom', enum: ['elastic'] }) === -1) {
                 result[newKey].get.parameters.push({
                   name: 'getFrom',
                   in: 'query',