diff --git a/docs/sources/panels-visualizations/query-transform-data/transform-data/index.md b/docs/sources/panels-visualizations/query-transform-data/transform-data/index.md
index 033115c665c..48beaa8e77f 100644
--- a/docs/sources/panels-visualizations/query-transform-data/transform-data/index.md
+++ b/docs/sources/panels-visualizations/query-transform-data/transform-data/index.md
@@ -578,6 +578,7 @@ Use this transformation to customize the output of a string field. This transfor
 - **Kebab case** - Formats all characters in the string in lowercase and uses dashes instead of spaces between words.
 - **Trim** - Removes all leading and trailing spaces from the string.
 - **Substring** - Returns a substring of the string, using the specified start and end positions.
+- **Affix** - Add a prefix or suffix string to the string.
 
 This transformation provides a convenient way to standardize and tailor the presentation of string data for better visualization and analysis.