diff --git a/generation/templates/service.tmpl b/generation/templates/service.tmpl
index 513d77e..96ab790 100644
--- a/generation/templates/service.tmpl
+++ b/generation/templates/service.tmpl
@@ -33,7 +33,17 @@ export default class {{.ModelName}}Service implements IService<{{.ModelName}}> {
 		return await SearchByAllTextFields(input) as {{ .ModelName }}[]
 	}
 
-	async sort(options: SortOptions<{{ .ModelName }}>) {
-		return await SortedByOrder(Object.entries(options).map(item => ({Name: item[0], Order: item[1]}))) as {{ .ModelName }}[]
-	}
+	async sort(options: SortOptions<Task>) {
+    return (await SortedByOrder(
+      Object.entries(options).map((item) => {
+        if (item[1] !== 'NONE') {
+          return ({
+            Name: item[0],
+            Order: item[1],
+          })
+        }
+      }).filter(item => !!item)
+    )) as Task[];
+  }
+}
 }
\ No newline at end of file