diff --git a/service/repositories/image_handle.go b/service/repositories/image_handle.go
index 1abf7cfd..b7fb7bdc 100644
--- a/service/repositories/image_handle.go
+++ b/service/repositories/image_handle.go
@@ -222,7 +222,7 @@ func (l *defaultImageHandle) LogoCombine(ctx context.Context, in *LogoCombineReq
 	moduleDataMap["groupOptions"] = groupOptions
 	moduleDataMap["materialList"] = materialList
 
-	var combineParam map[string]interface{}
+	var combineParam = make(map[string]interface{}, 8)
 	json.Unmarshal(*resLogoInfo.Metadata, &combineParam)
 	combineParam["resolution"] = in.Resolution
 	combineParam["template_tagid"] = in.TemplateTag