diff --git a/lua/MarkdownPreviewer/app.lua b/lua/MarkdownPreviewer/app.lua
index 4ac670e..ce05f25 100644
--- a/lua/MarkdownPreviewer/app.lua
+++ b/lua/MarkdownPreviewer/app.lua
@@ -47,6 +47,14 @@ function app:init(on_exit)
     })
 end
 
+function app:base(content)
+    if self.channel == nil then
+        return
+    end
+
+    chansend(self.channel, Message({base = content}))
+end
+
 function app:show(content)
     if self.channel == nil then
         return