diff --git a/.gitmodules b/.gitmodules
index 55cfc02..bde3abf 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "astroport-iptubes"]
 	path = iptubes
 	url = https://git.p2p.legal/axiom-team/astroport-iptubes
+[submodule "ssb-g1-tip"]
+	path = ssb-g1-tip
+	url = https://git.p2p.legal/axiom-team/ssb-g1-tip
diff --git a/ssb-g1-tip b/ssb-g1-tip
new file mode 160000
index 0000000..6741563
--- /dev/null
+++ b/ssb-g1-tip
@@ -0,0 +1 @@
+Subproject commit 6741563501dadc8b18822c467d0651f305b52ff8