diff --git a/shell/apple/emulator-osx/emulator-osx/osx-main.mm b/shell/apple/emulator-osx/emulator-osx/osx-main.mm
index 408355929..40be940c9 100644
--- a/shell/apple/emulator-osx/emulator-osx/osx-main.mm
+++ b/shell/apple/emulator-osx/emulator-osx/osx-main.mm
@@ -134,7 +134,6 @@ extern "C" int emu_single_frame(int w, int h) {
         return true;
     screen_width = w;
     screen_height = h;
-    glViewport(0, 0, screen_width, screen_height);
 
     return rend_single_frame();
 }