diff --git a/Windows/WndMainWindow.cpp b/Windows/WndMainWindow.cpp
index 5ae1c3cbea..5d3afc108c 100644
--- a/Windows/WndMainWindow.cpp
+++ b/Windows/WndMainWindow.cpp
@@ -830,7 +830,7 @@ namespace MainWindow
 
 	LRESULT CALLBACK DisplayProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
 		// Only apply a factor > 1 in windowed mode.
-		int factor = !g_Config.bFullScreen && g_Config.iWindowWidth < (480 + 80) ? 2 : 1;
+		int factor = !IsZoomed(GetHWND()) && !g_Config.bFullScreen && g_Config.iWindowWidth < (480 + 80) ? 2 : 1;
 
 		switch (message) {
 		case WM_ACTIVATE: