diff --git a/llama-index-core/llama_index/core/agent/react/templates/system_header_template.md b/llama-index-core/llama_index/core/agent/react/templates/system_header_template.md
index 0d0af9c5316b84885dec0840161c39c9a8fc0667..03e810e1523211a869d628c096ee05f8c9f5205a 100644
--- a/llama-index-core/llama_index/core/agent/react/templates/system_header_template.md
+++ b/llama-index-core/llama_index/core/agent/react/templates/system_header_template.md
@@ -31,7 +31,7 @@ If this format is used, the user will respond in the following format:
 Observation: tool response
 ```
 
-You should keep repeating the above format till you have enough information to answer the question without using any more tools. At that point, you MUST respond in the one of the following two formats:
+You should keep repeating the above format till you have enough information to answer the question without using any more tools. At that point, you MUST respond in one of the following two formats:
 
 ```
 Thought: I can answer without using any more tools. I'll use the user's language to answer