diff --git a/doc/_extensions/zephyr/kconfig/__init__.py b/doc/_extensions/zephyr/kconfig/__init__.py
index eb1903b1898..dfb7a567da8 100644
--- a/doc/_extensions/zephyr/kconfig/__init__.py
+++ b/doc/_extensions/zephyr/kconfig/__init__.py
@@ -106,6 +106,9 @@ def kconfig_load(app: Sphinx) -> tuple[kconfiglib.Kconfig, kconfiglib.Kconfig, d
             for folder in soc_folders:
                 f.write('source "' + (Path(folder) / 'Kconfig.soc').as_posix() + '"\n')
 
+                if "nordic" in folder:
+                    f.write('osource "' + (Path(folder) / 'Kconfig.sysbuild').as_posix() + '"\n')
+
         with open(Path(td) / "soc" / "Kconfig", "w") as f:
             for folder in soc_folders:
                 f.write('osource "' + (Path(folder) / 'Kconfig').as_posix() + '"\n')