diff --git a/doc/api/efi.rst b/doc/api/efi.rst
index d5114f0..cb2a1c8 100644
--- a/doc/api/efi.rst
+++ b/doc/api/efi.rst
@@ -93,6 +93,8 @@
 Variable services
 ~~~~~~~~~~~~~~~~~
 
+.. kernel-doc:: include/efi_variable.h
+   :internal:
 .. kernel-doc:: lib/efi_loader/efi_variable.c
    :internal: