diff --git a/src-python/webui_controller.py b/src-python/webui_controller.py
index 6616de8e..158e66bf 100644
--- a/src-python/webui_controller.py
+++ b/src-python/webui_controller.py
@@ -150,7 +150,7 @@ class Controller:
 
         def downloaded(self) -> None:
             weight_type_dict = config.SELECTABLE_CTRANSLATE2_WEIGHT_TYPE_DICT
-            weight_type_dict["self.weight_type"] = True
+            weight_type_dict[self.weight_type] = True
             config.SELECTABLE_CTRANSLATE2_WEIGHT_TYPE_DICT = weight_type_dict
 
             self.run(
@@ -1441,7 +1441,7 @@ class Controller:
         th_start_update_cuda_software.start()
         return {"status":200, "result":True}
 
-    def downloadCtranslate2Weight(self, data:str, *args, **kwargs) -> dict:
+    def downloadCtranslate2Weight(self, data:str, asynchronous:bool=True, *args, **kwargs) -> dict:
         weight_type = str(data)
         download_ctranslate2 = self.DownloadCTranslate2(
             self.run_mapping,
@@ -1449,25 +1449,31 @@ class Controller:
             self.run
             )
 
-        self.startThreadingDownloadCtranslate2Weight(
-            weight_type,
-            download_ctranslate2.progressBar,
-            download_ctranslate2.downloaded,
-            )
+        if asynchronous is True:
+            self.startThreadingDownloadCtranslate2Weight(
+                weight_type,
+                download_ctranslate2.progressBar,
+                download_ctranslate2.downloaded,
+                )
+        else:
+            model.downloadCTranslate2ModelWeight(weight_type, download_ctranslate2.progressBar, download_ctranslate2.downloaded)
         return {"status":200, "result":True}
 
-    def downloadWhisperWeight(self, data:str, *args, **kwargs) -> dict:
+    def downloadWhisperWeight(self, data:str, asynchronous:bool=True, *args, **kwargs) -> dict:
         weight_type = str(data)
         download_whisper = self.DownloadWhisper(
             self.run_mapping,
             weight_type,
             self.run
         )
-        self.startThreadingDownloadWhisperWeight(
-            weight_type,
-            download_whisper.progressBar,
-            download_whisper.downloaded,
-            )
+        if asynchronous is True:
+            self.startThreadingDownloadWhisperWeight(
+                weight_type,
+                download_whisper.progressBar,
+                download_whisper.downloaded,
+                )
+        else:
+            model.downloadWhisperModelWeight(weight_type, download_whisper.progressBar, download_whisper.downloaded)
         return {"status":200, "result":True}
 
     @staticmethod
@@ -1702,7 +1708,7 @@ class Controller:
         printLog("Download CTranslate2 Model Weight")
         weight_type = config.CTRANSLATE2_WEIGHT_TYPE
         if model.checkTranslatorCTranslate2ModelWeight(weight_type) is False:
-            self.downloadCtranslate2Weight(weight_type)
+            self.downloadCtranslate2Weight(weight_type, False)
 
         # set Translation Engine
         printLog("Set Translation Engine")
@@ -1713,7 +1719,7 @@ class Controller:
         printLog("Download Whisper Model Weight")
         weight_type = config.WHISPER_WEIGHT_TYPE
         if model.checkTranscriptionWhisperModelWeight(weight_type) is False:
-            self.downloadWhisperWeight(weight_type)
+            self.downloadWhisperWeight(weight_type, False)
 
         # set Transcription Engine
         printLog("Set Transcription Engine")