diff --git a/litellm/llms/ollama/chat/transformation.py b/litellm/llms/ollama/chat/transformation.py
index dfd53a5e2b..c2c5a366ec 100644
--- a/litellm/llms/ollama/chat/transformation.py
+++ b/litellm/llms/ollama/chat/transformation.py
@@ -186,7 +186,7 @@ class OllamaChatConfig(BaseConfig):
                     optional_params["format"] = value["json_schema"]["schema"]
             ### FUNCTION CALLING LOGIC ###
             if param == "reasoning_effort" and value is not None:
-                optional_params["think"] = True
+                optional_params["think"] = value
             if param == "tools":
                 ## CHECK IF MODEL SUPPORTS TOOL CALLING ##
                 try:
diff --git a/litellm/llms/ollama/completion/transformation.py b/litellm/llms/ollama/completion/transformation.py
index 662affcb27..dd0280a00b 100644
--- a/litellm/llms/ollama/completion/transformation.py
+++ b/litellm/llms/ollama/completion/transformation.py
@@ -180,7 +180,7 @@ class OllamaConfig(BaseConfig):
             elif param == "stop":
                 optional_params["stop"] = value
             elif param == "reasoning_effort" and value is not None:
-                optional_params["think"] = True
+                optional_params["think"] = value
             elif param == "response_format" and isinstance(value, dict):
                 if value["type"] == "json_object":
                     optional_params["format"] = "json"