diff --git a/src-python/webui_controller.py b/src-python/webui_controller.py
index 66862ab9..39a17dc1 100644
--- a/src-python/webui_controller.py
+++ b/src-python/webui_controller.py
@@ -1566,11 +1566,7 @@ class Controller:
         engines[config.SELECTED_TAB_NO] = engine
         config.SELECTED_TRANSLATION_ENGINES = engines
 
-        data = {
-            "engines":config.SELECTED_TRANSLATION_ENGINES,
-            "weight_type":config.CTRANSLATE2_WEIGHT_TYPE,
-        }
-        self.run(200, self.run_mapping["selected_translation_engines"], data)
+        self.run(200, self.run_mapping["selected_translation_engines"], config.SELECTED_TRANSLATION_ENGINES)
         self.run(200, self.run_mapping["translation_engines"], selectable_engines)
 
     def updateDownloadedWhisperModelWeight(self) -> None: