diff --git a/docs/tools/PDFSearchTool.md b/docs/tools/PDFSearchTool.md
index 17e36ca64..6a7423f67 100644
--- a/docs/tools/PDFSearchTool.md
+++ b/docs/tools/PDFSearchTool.md
@@ -29,7 +29,7 @@ tool = PDFSearchTool(pdf='path/to/your/document.pdf')
 ```
 
 ## Arguments
-- `pdf`: **Optinal** The PDF path for the search. Can be provided at initialization or within the `run` method's arguments. If provided at initialization, the tool confines its search to the specified document.
+- `pdf`: **Optional** The PDF path for the search. Can be provided at initialization or within the `run` method's arguments. If provided at initialization, the tool confines its search to the specified document.
 
 ## Custom model and embeddings