diff --git a/src/openrct2-ui/UiContext.cpp b/src/openrct2-ui/UiContext.cpp
index 70571a0ccc..74a8960962 100644
--- a/src/openrct2-ui/UiContext.cpp
+++ b/src/openrct2-ui/UiContext.cpp
@@ -580,10 +580,14 @@ private:
 
         // Check if the window has been resized in windowed mode and update the config file accordingly
         // This is called in rct2_update and is only called after resizing a window has finished
-        sint32 nonWindowFlags = SDL_WINDOW_MAXIMIZED |
-                                SDL_WINDOW_MINIMIZED |
-                                SDL_WINDOW_FULLSCREEN |
-                                SDL_WINDOW_FULLSCREEN_DESKTOP;
+        sint32 nonWindowFlags =
+#ifndef __MACOSX__
+            SDL_WINDOW_MAXIMIZED |
+#endif
+            SDL_WINDOW_MINIMIZED |
+            SDL_WINDOW_FULLSCREEN |
+            SDL_WINDOW_FULLSCREEN_DESKTOP;
+
         if (!(flags & nonWindowFlags))
         {
             if (width != gConfigGeneral.window_width || height != gConfigGeneral.window_height)
diff --git a/src/openrct2/platform/linux.c b/src/openrct2/platform/linux.c
index d1f9e684ed..1019439a02 100644
--- a/src/openrct2/platform/linux.c
+++ b/src/openrct2/platform/linux.c
@@ -264,9 +264,4 @@ bool platform_get_font_path(TTFFontDescriptor *font, utf8 *buffer, size_t size)
 }
 #endif // NO_TTF
 
-sint32 platform_get_non_window_flags()
-{
-    return SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED | SDL_WINDOW_FULLSCREEN | SDL_WINDOW_FULLSCREEN_DESKTOP;
-}
-
 #endif
diff --git a/src/openrct2/platform/platform.h b/src/openrct2/platform/platform.h
index 41bfef6643..ccb90bd2c0 100644
--- a/src/openrct2/platform/platform.h
+++ b/src/openrct2/platform/platform.h
@@ -191,9 +191,4 @@ void core_init();
     utf8* macos_str_decomp_to_precomp();
 #endif
 
-// On macOS the resizing behaviour effectively resizes the window in the same
-// way a normal drag would do, given constraints in the user desktop (e.g. the dock
-// positioning). So it follows that the finished window size should be saved.
-sint32 platform_get_non_window_flags();
-
 #endif
diff --git a/src/openrct2/platform/windows.c b/src/openrct2/platform/windows.c
index 232cc5677a..826f66d9ad 100644
--- a/src/openrct2/platform/windows.c
+++ b/src/openrct2/platform/windows.c
@@ -1090,9 +1090,4 @@ bool platform_setup_uri_protocol()
 
 ///////////////////////////////////////////////////////////////////////////////
 
-sint32 platform_get_non_window_flags()
-{
-    return SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED | SDL_WINDOW_FULLSCREEN | SDL_WINDOW_FULLSCREEN_DESKTOP;
-}
-
 #endif