diff --git a/.gitmodules b/.gitmodules
index 25beb90a7cd80d3ebd479ff60b97f861aaeb7799..525a7635f2af56df5b0895887dc9327a8eae5f15 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -5,3 +5,6 @@
 [submodule "community/kalkspace"]
 	path = community/kalkspace
 	url = https://github.com/kalkspace/pixel.git
+[submodule "community/cert"]
+	path = community/cert
+	url = git@github.com:c3CERT/rc3_tiles.git
diff --git a/community/cert b/community/cert
new file mode 160000
index 0000000000000000000000000000000000000000..6a140dbfbf688f855ce08671c7513c106bbdc50d
--- /dev/null
+++ b/community/cert
@@ -0,0 +1 @@
+Subproject commit 6a140dbfbf688f855ce08671c7513c106bbdc50d