diff --git a/claude_sonnet-3-7-bedrock.py b/claude_sonnet-3-7-bedrock.py
index b00b317..5c00f7d 100644
--- a/claude_sonnet-3-7-bedrock.py
+++ b/claude_sonnet-3-7-bedrock.py
@@ -183,8 +183,9 @@ class Pipeline:
                 
                 # Handle reasoning content (Chain of Thought)
                 if "reasoningContent" in delta and "text" in delta["reasoningContent"]:
-                   # if '"<details type="reasoning" done="false">' in delta["reasoningContent"]["text"]:
-                    yield delta["reasoningContent"]["text"]
+                   if '"<details type="reasoning" done="false">' in delta["reasoningContent"]["text"]:
+                     yield "<thinking>" 
+                   yield delta["reasoningContent"]["text"]
                 
                 # Handle regular response text
                 if "text" in delta: