diff --git a/doc/api/projects.md b/doc/api/projects.md
index 9f2945d07..e795298c6 100644
--- a/doc/api/projects.md
+++ b/doc/api/projects.md
@@ -231,6 +231,7 @@ POST /projects
 Parameters:
 
 + `name` (required) - new project name
++ `namespace_id` (optional) - namespace for the new project (defaults to user)
 + `description` (optional) - short project description
 + `issues_enabled` (optional)
 + `wall_enabled` (optional)