diff --git a/lua/avante/providers/copilot.lua b/lua/avante/providers/copilot.lua
index ece8394..5f56dc0 100644
--- a/lua/avante/providers/copilot.lua
+++ b/lua/avante/providers/copilot.lua
@@ -215,7 +215,7 @@ M.parse_messages = OpenAI.parse_messages
 
 M.parse_response = OpenAI.parse_response
 
-M.is_o_series_model = OpenAI.is_o_series_model
+M.is_reasoning_model = OpenAI.is_reasoning_model
 
 function M:parse_curl_args(prompt_opts)
   -- refresh token synchronously, only if it has expired
diff --git a/lua/avante/providers/ollama.lua b/lua/avante/providers/ollama.lua
index 9471b77..684048b 100644
--- a/lua/avante/providers/ollama.lua
+++ b/lua/avante/providers/ollama.lua
@@ -12,7 +12,7 @@ M.role_map = {
 }
 
 M.parse_messages = P.openai.parse_messages
-M.is_o_series_model = P.openai.is_o_series_model
+M.is_reasoning_model = P.openai.is_reasoning_model
 
 function M:is_disable_stream() return false end