diff --git a/lua/gemini/chat.lua b/lua/gemini/chat.lua
index 73da27c..6ad3dbd 100644
--- a/lua/gemini/chat.lua
+++ b/lua/gemini/chat.lua
@@ -115,7 +115,20 @@ function M.update_content(content, is_new_chat)
     vim.api.nvim_buf_set_option(state.bufnr, 'modifiable', true)
 
     if is_new_chat then
-        vim.api.nvim_buf_set_lines(state.bufnr, 0, -1, false, vim.split(content, "\n"))
+        -- Don't clear existing content, append to it
+        local lines = vim.split(content, "\n")
+        if #state.conversation_history > 0 then
+            -- Add separator before new content
+            local separator = "━━━━━━━━━━━━━━━━━━━━━━━━━━"
+            table.insert(lines, 1, separator)
+            -- Get current buffer content
+            local current_lines = vim.api.nvim_buf_get_lines(state.bufnr, 0, -1, false)
+            -- Combine existing content with new content
+            for i = #current_lines, 1, -1 do
+                table.insert(lines, 1, current_lines[i])
+            end
+        end
+        vim.api.nvim_buf_set_lines(state.bufnr, 0, -1, false, lines)
     else
         local separator = "━━━━━━━━━━━━━━━━━━━━━━━━━━"
         vim.api.nvim_buf_set_lines(state.bufnr, -1, -1, false, {separator})