diff --git a/sui/core/script.go b/sui/core/script.go
index bc1293e0..3db7c949 100644
--- a/sui/core/script.go
+++ b/sui/core/script.go
@@ -63,9 +63,11 @@ func LoadScript(file string, disableCache ...bool) (*Script, error) {
 		}
 	}
 
-	file = base + ".ts"
+	file = base + ".backend.ts"
+	fmt.Println(file)
+
 	if exist, _ := application.App.Exists(file); !exist {
-		file = base + ".js"
+		file = base + ".backend.js"
 	}
 
 	if exist, _ := application.App.Exists(file); !exist {
diff --git a/sui/storages/local/build.go b/sui/storages/local/build.go
index f9800dc9..4a428c2e 100644
--- a/sui/storages/local/build.go
+++ b/sui/storages/local/build.go
@@ -692,7 +692,7 @@ func (page *Page) writeBackendScript(data map[string]interface{}) error {
 	}
 
 	ext := filepath.Ext(file)
-	scriptFile := fmt.Sprintf("%s%s", page.publicFile(data), ext)
+	scriptFile := fmt.Sprintf("%s.backend%s", page.publicFile(data), ext)
 	scriptFileAbs := filepath.Join(application.App.Root(), scriptFile)
 	dir := filepath.Dir(scriptFileAbs)
 	if exist, _ := os.Stat(dir); exist == nil {