diff --git a/src/openrct2/config/Config.h b/src/openrct2/config/Config.h
index 9885d325c8..0e24ccb9c4 100644
--- a/src/openrct2/config/Config.h
+++ b/src/openrct2/config/Config.h
@@ -213,6 +213,16 @@ enum MEASUREMENT_FORMAT
     MEASUREMENT_FORMAT_SI
 };
 
+#ifndef __cplusplus
+// This is only for C files, C++ files should use FULLSCREEN_MODE in UiContext.h
+enum
+{
+    FULLSCREEN_MODE_WINDOWED,
+    FULLSCREEN_MODE_FULLSCREEN,
+    FULLSCREEN_MODE_FULLSCREEN_DESKTOP,
+};
+#endif
+
 #ifdef __cplusplus
 extern "C"
 {
diff --git a/src/openrct2/windows/options.c b/src/openrct2/windows/options.c
index b7cde42d23..d1de6a6231 100644
--- a/src/openrct2/windows/options.c
+++ b/src/openrct2/windows/options.c
@@ -1283,8 +1283,8 @@ static void window_options_dropdown(rct_window *w, rct_widgetindex widgetIndex,
                     gConfigGeneral.fullscreen_width = resolution->Width;
                     gConfigGeneral.fullscreen_height = resolution->Height;
 
-                    if (gConfigGeneral.fullscreen_mode == SDL_WINDOW_FULLSCREEN)
-                        context_set_fullscreen_mode(SDL_WINDOW_FULLSCREEN);
+                    if (gConfigGeneral.fullscreen_mode == FULLSCREEN_MODE_FULLSCREEN)
+                        context_set_fullscreen_mode(FULLSCREEN_MODE_FULLSCREEN);
 
                     config_save_default();
                     gfx_invalidate_screen();