diff --git a/src/Gui/PreferencePacks/Classic/post.FCMacro b/src/Gui/PreferencePacks/Classic/post.FCMacro
index dbeaf790b2..b74390d66d 100644
--- a/src/Gui/PreferencePacks/Classic/post.FCMacro
+++ b/src/Gui/PreferencePacks/Classic/post.FCMacro
@@ -3,3 +3,6 @@ import FreeCAD
 
 editorPrefs = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Editor")
 editorPrefs.RemInt("Text")
+
+appPrefs = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/General")
+appPrefs.RemString("QtStyle")