diff --git a/lua/quarto/runner/init.lua b/lua/quarto/runner/init.lua
index 76f9d14..8cd838e 100644
--- a/lua/quarto/runner/init.lua
+++ b/lua/quarto/runner/init.lua
@@ -84,12 +84,12 @@ local function run(range, multi_lang)
   end
 
   otterkeeper.sync_raft(buf)
-  local oa = otterkeeper._otters_attached[buf]
+  local oa = otterkeeper.rafts[buf]
   if oa == nil then
     vim.notify("[Quarto] it seems that the code runner isn't initialized for this buffer.", vim.log.levels.ERROR)
     return
   end
-  local chunks = otterkeeper._otters_attached[buf].code_chunks
+  local chunks = otterkeeper.rafts[buf].code_chunks
 
   local filtered = extract_code_cells_in_range(lang, chunks, range)