diff --git a/Documentation/driver-api/serial/index.rst b/Documentation/driver-api/serial/index.rst
index 7eb21a695fc3..4ebdb86cd6b6 100644
--- a/Documentation/driver-api/serial/index.rst
+++ b/Documentation/driver-api/serial/index.rst
@@ -17,7 +17,6 @@ Serial drivers
     :maxdepth: 1
 
     moxa-smartio
-    n_gsm
     serial-iso7816
     serial-rs485
 
diff --git a/Documentation/driver-api/tty/index.rst b/Documentation/driver-api/tty/index.rst
index e6a7f717a9a5..85eaac76a971 100644
--- a/Documentation/driver-api/tty/index.rst
+++ b/Documentation/driver-api/tty/index.rst
@@ -68,4 +68,5 @@ Miscellaneous documentation can be further found in these documents:
 .. toctree::
    :maxdepth: 2
 
+   n_gsm
    n_tty
diff --git a/Documentation/driver-api/serial/n_gsm.rst b/Documentation/driver-api/tty/n_gsm.rst
similarity index 100%
rename from Documentation/driver-api/serial/n_gsm.rst
rename to Documentation/driver-api/tty/n_gsm.rst