diff --git a/Documentation/driver-api/index.rst b/Documentation/driver-api/index.rst
index c3c50b1..a968773 100644
--- a/Documentation/driver-api/index.rst
+++ b/Documentation/driver-api/index.rst
@@ -34,6 +34,7 @@
    edac
    libata
    miscellaneous
+   s390-drivers
    vme
    80211/index
    uio-howto