diff --git a/lua/opencode/core.lua b/lua/opencode/core.lua
index f68af3e8..76783859 100644
--- a/lua/opencode/core.lua
+++ b/lua/opencode/core.lua
@@ -93,6 +93,7 @@ M.open = Promise.async(function(opts)
     if opts.new_session then
       state.active_session = nil
       state.last_sent_context = nil
+      context.unload_attachments()
 
       state.current_model = nil
       state.current_mode = nil