diff --git a/Source/Modules/IMEModules/IME.swift b/Source/Modules/IMEModules/IME.swift
index cd9a72e1..45b5f1bb 100644
--- a/Source/Modules/IMEModules/IME.swift
+++ b/Source/Modules/IMEModules/IME.swift
@@ -88,6 +88,8 @@ public enum IME {
   // MARK: - Initializing Language Models.
 
   static func initLangModels(userOnly: Bool) {
+    mgrLangModel.chkUserLMFilesExist(.imeModeCHT)
+    mgrLangModel.chkUserLMFilesExist(.imeModeCHS)
     // mgrLangModel 的 loadUserPhrases 等函式在自動讀取 dataFolderPath 時，
     // 如果發現自訂目錄不可用，則會自動抹去自訂目錄設定、改採預設目錄。
     // 所以這裡不需要特別處理。
diff --git a/Source/Modules/LangModelRelated/mgrLangModel.swift b/Source/Modules/LangModelRelated/mgrLangModel.swift
index 82efb2ce..e79eda30 100644
--- a/Source/Modules/LangModelRelated/mgrLangModel.swift
+++ b/Source/Modules/LangModelRelated/mgrLangModel.swift
@@ -315,7 +315,7 @@ enum mgrLangModel {
     return true
   }
 
-  static func chkUserLMFilesExist(_ mode: InputMode) -> Bool {
+  @discardableResult static func chkUserLMFilesExist(_ mode: InputMode) -> Bool {
     if !userDataFolderExists {
       return false
     }