diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index 685b23a0a4..d5ab51853a 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -1684,6 +1684,7 @@ BOOL LLViewerWindow::handleDPIChanged(LLWindow *window, F32 ui_scale_factor, S32
 
     if (ui_scale_factor >= MIN_UI_SCALE && ui_scale_factor <= MAX_UI_SCALE)
     {
+        gSavedSettings.setF32("LastSystemUIScaleFactor", ui_scale_factor); // <FS:Ansariel> Remember last used system UI scale factor
         gSavedSettings.setF32("UIScaleFactor", ui_scale_factor);
         LLViewerWindow::reshape(window_width, window_height);
         mResDirty = true;