diff --git a/docs/library/axi_dmac/index.rst b/docs/library/axi_dmac/index.rst
index 9ffa2faa5..fb2df5b2e 100644
--- a/docs/library/axi_dmac/index.rst
+++ b/docs/library/axi_dmac/index.rst
@@ -1,3 +1,5 @@
+.. _axi_dmac:
+
 High-Speed DMA Controller
 ================================================================================