diff --git a/docs/components/debugfs-design.rst b/docs/components/debugfs-design.rst
index 2096bdb..2536515 100644
--- a/docs/components/debugfs-design.rst
+++ b/docs/components/debugfs-design.rst
@@ -80,8 +80,8 @@
 The communication with the 9p layer in BL31 is made through an SMC conduit
 (`SMC Calling Convention`_), using a specific SiP Function Id. An NS
 shared buffer is used to pass path string parameters, or e.g. to exchange
-data on a read operation. Refer to `ARM SiP Services`_ for a description
-of the SMC interface.
+data on a read operation. Refer to :ref:`ARM SiP Services <arm sip services>`
+for a description of the SMC interface.
 
 Security considerations
 -----------------------