diff --git a/docs/design/interrupt-framework-design.rst b/docs/design/interrupt-framework-design.rst
index 14f7227..2e200aa 100644
--- a/docs/design/interrupt-framework-design.rst
+++ b/docs/design/interrupt-framework-design.rst
@@ -138,6 +138,8 @@
    reason to route the interrupt to EL3 software and then hand it back to
    non-secure software for handling.
 
+.. _EL3 interrupts:
+
 EL3 interrupts
 ^^^^^^^^^^^^^^