diff --git a/aider/coders/base_coder.py b/aider/coders/base_coder.py
index ff37c423f..70b06eb66 100755
--- a/aider/coders/base_coder.py
+++ b/aider/coders/base_coder.py
@@ -1563,8 +1563,8 @@ class Coder:
             # Calculate costs for successful responses
             self.calculate_and_show_tokens_and_cost(messages, completion)
 
-        except litellm_ex.exceptions_tuple() as err:
-            ex_info = litellm_ex.get_ex_info(err)
+        except LiteLLMExceptions().exceptions_tuple() as err:
+            ex_info = LiteLLMExceptions().get_ex_info(err)
             if ex_info.name == "ContextWindowExceededError":
                 # Still calculate costs for context window errors
                 self.calculate_and_show_tokens_and_cost(messages, completion)