diff --git a/bin/evening_detective_server b/bin/evening_detective_server
index 3f5adef..86e248b 100755
Binary files a/bin/evening_detective_server and b/bin/evening_detective_server differ
diff --git a/internal/app/server.go b/internal/app/server.go
index 86ec04c..70eacee 100644
--- a/internal/app/server.go
+++ b/internal/app/server.go
@@ -324,6 +324,9 @@ func (s *server) enrichScreenState(ctx context.Context, session *screen_sessions
 			state.ConclusionVideo = game.Scenario.Story.Conclusion.Video
 		}
 	}
+	if state.BackgroundImage == "" {
+		state.BackgroundImage = state.CoverImage
+	}
 }
 
 func (s *server) SetScreenMode(ctx context.Context, req *proto.SetScreenModeReq) (*proto.SetScreenModeRsp, error) {