diff --git a/server/websocket/internal/logic/ws_render_image.go b/server/websocket/internal/logic/ws_render_image.go
index 4ac0f8f5..aeb2419b 100644
--- a/server/websocket/internal/logic/ws_render_image.go
+++ b/server/websocket/internal/logic/ws_render_image.go
@@ -212,6 +212,7 @@ func (w *wsConnectItem) genRenderTaskId(renderImageData websocket_data.RenderIma
 		"income_param":   incomeHashBytes,
 		"model_info":     modelHashStr,
 		"template_info":  templateHashStr,
+		"material_image": *productTemplate.MaterialImg,
 		"render_element": elementHashBytes,
 	}
 	return hash.JsonHashKey(hashMap)