diff --git a/src/main/main.cpp b/src/main/main.cpp
index 7d9564c..cd9057a 100644
--- a/src/main/main.cpp
+++ b/src/main/main.cpp
@@ -114,7 +114,7 @@ ultramodern::WindowHandle create_window(ultramodern::gfx_callbacks_t::gfx_data_t
     if (ultramodern::get_graphics_config().wm_option == ultramodern::WindowMode::Fullscreen) { // TODO: Remove once RT64 gets native fullscreen support on Linux
         SDL_SetWindowFullscreen(window,SDL_WINDOW_FULLSCREEN_DESKTOP);
     } else {
-        SDL_SetWindowFullscreen(window,SDL_WINDOW_RESIZABLE);
+        SDL_SetWindowFullscreen(window,0);
     }
 #endif
 
diff --git a/src/ui/ui_config.cpp b/src/ui/ui_config.cpp
index 78c1b93..80100e9 100644
--- a/src/ui/ui_config.cpp
+++ b/src/ui/ui_config.cpp
@@ -197,7 +197,7 @@ void apply_graphics_config(void) {
 	if (new_options.wm_option == ultramodern::WindowMode::Fullscreen) {
 		SDL_SetWindowFullscreen(window,SDL_WINDOW_FULLSCREEN_DESKTOP);
 	} else {
-		SDL_SetWindowFullscreen(window,SDL_WINDOW_RESIZABLE);
+		SDL_SetWindowFullscreen(window,0);
 	}
 #endif
 }