diff --git a/bitbake/doc/bitbake-user-manual/bitbake-user-manual-ref-variables.rst b/bitbake/doc/bitbake-user-manual/bitbake-user-manual-ref-variables.rst
index 78fb2826a5..bb996e8493 100644
--- a/bitbake/doc/bitbake-user-manual/bitbake-user-manual-ref-variables.rst
+++ b/bitbake/doc/bitbake-user-manual/bitbake-user-manual-ref-variables.rst
@@ -1378,6 +1378,9 @@ overview of their function and contents.
       -  ``git://`` : Fetches files from a Git revision control
          repository.
 
+      -  ``gitsm://`` : Fetches submodules from a Git revision control
+         repository.
+
       -  ``hg://`` : Fetches files from a Mercurial (``hg``) revision
          control repository.