diff --git a/.gitmodules b/.gitmodules
index 75281289e3d509740ac3d1bbaacafe260a704dcc..6ae9b2ca1c8b573735e188c020ff1f5afdd19728 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "doc/orgmode/org-html-themes"]
 	path = doc/orgmode/org-html-themes
 	url = https://github.com/fniessen/org-html-themes.git
+[submodule "coreblas/hmat-oss"]
+	path = coreblas/hmat-oss
+	url = https://github.com/jeromerobert/hmat-oss.git
diff --git a/coreblas/hmat-oss b/coreblas/hmat-oss
new file mode 160000
index 0000000000000000000000000000000000000000..e0f34af5eaf36329a336742183e17755df174b4c
--- /dev/null
+++ b/coreblas/hmat-oss
@@ -0,0 +1 @@
+Subproject commit e0f34af5eaf36329a336742183e17755df174b4c