diff --git a/mkdocs.yml b/mkdocs.yml
index 02de5bdd3d2c204405336e6a17229491570988fa..e93a68d0536d263c42d99b145a742106e0294d8c 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -225,6 +225,7 @@ nav:
       - EasyBuild:
         - Introduction: software/tools/easybuild.md
         - Generating Container Recipes and Images: software/tools/easybuild-images.md
+      - Singularity: software/tools/singularity-it4i.md
       - Spack: software/tools/spack.md
       - Virtualization: software/tools/virtualization.md
     - Visualization: