diff --git a/docs/Strings/String Operation.md b/docs/Strings/String Operation.md
index 2ed5f6ef4..f707cda8c 100644
--- a/docs/Strings/String Operation.md	
+++ b/docs/Strings/String Operation.md	
@@ -1,5 +1,5 @@
 ---
-id: String-operations
+id: string-operations
 title: String Operations
 sidebar_label: operation
 sidebar_position: 2
@@ -128,4 +128,4 @@ Padding is used to adjust the length of a string by adding extra characters to e
 ```Python 
 text = "5"
 print(text.zfill(3))  # Output: "005"
-```
\ No newline at end of file
+```