diff --git a/src/video/mir/SDL_mirwindow.h b/src/video/mir/SDL_mirwindow.h
index 39d5e7444..411c1485f 100644
--- a/src/video/mir/SDL_mirwindow.h
+++ b/src/video/mir/SDL_mirwindow.h
@@ -34,7 +34,6 @@
 typedef struct {
     SDL_Window* sdl_window;
     MIR_Data* mir_data;
-    bool software;
 
     MirSurface* surface;
     EGLSurface egl_surface;