diff --git a/doc/api/repositories.md b/doc/api/repositories.md
index 5dbf6cb076058fd6d9eb3a7457258c940abff906..c8de7f2191d84906203b28dba0cb754bfe99d839 100644
--- a/doc/api/repositories.md
+++ b/doc/api/repositories.md
@@ -17,6 +17,7 @@ Parameters:
 - `path` (optional) - The path inside repository. Used to get content of subdirectories
 - `ref` (optional) - The name of a repository branch or tag or if not given the default branch
 - `recursive` (optional) - Boolean value used to get a recursive tree (false by default)
+- `per_page` (optional) - Number of results to show per page. If not specified, defaults to `20`
 
 ```json
 [