diff --git a/pr_agent/algo/ai_handlers/litellm_ai_handler.py b/pr_agent/algo/ai_handlers/litellm_ai_handler.py
index 453973f6..50d14b21 100644
--- a/pr_agent/algo/ai_handlers/litellm_ai_handler.py
+++ b/pr_agent/algo/ai_handlers/litellm_ai_handler.py
@@ -200,10 +200,10 @@ class LiteLLMAIHandler(BaseAiHandler):
             # Currently, model OpenAI o1 series does not support a separate system and user prompts
             O1_MODEL_PREFIX = 'o1'
             model_type = model.split('/')[-1] if '/' in model else model
-            if model_type.startswith(O1_MODEL_PREFIX):
+            if (model_type.startswith(O1_MODEL_PREFIX)) or ("deepseek-reasoner" in model):
                 user = f"{system}\n\n\n{user}"
                 system = ""
-                get_logger().info(f"Using O1 model, combining system and user prompts")
+                get_logger().info(f"Using model {model}, combining system and user prompts")
                 messages = [{"role": "user", "content": user}]
                 kwargs = {
                     "model": model,