diff --git a/engines/sci/graphics/screen.cpp b/engines/sci/graphics/screen.cpp
index 8b0e76332f0..2f95bf77510 100644
--- a/engines/sci/graphics/screen.cpp
+++ b/engines/sci/graphics/screen.cpp
@@ -238,6 +238,8 @@ GfxScreen::GfxScreen(ResourceManager *resMan) : _resMan(resMan) {
 		_vectorPutPixelPtr = &GfxScreen::putPixelDisplayUpscaled;
 		_putPixelPtr = &GfxScreen::putPixelDisplayUpscaled;
 		break;
+	case GFX_SCREEN_UPSCALED_DISABLED:
+		break;
 	}
 }