diff --git a/.gitmodules b/.gitmodules
index 9a3859e..2ceb257 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -52,6 +52,9 @@
 [submodule "cl-flexi-streams"]
 	path = cl-flexi-streams
 	url = ssh://aur@aur.archlinux.org/cl-flexi-streams.git
+[submodule "cl-ironclad"]
+	path = cl-ironclad
+	url = ssh://aur@aur.archlinux.org/cl-ironclad.git
 [submodule "cl-rt"]
 	path = cl-rt
 	url = ssh://aur@aur.archlinux.org/cl-rt.git
diff --git a/cl-ironclad b/cl-ironclad
new file mode 160000
index 0000000..487858b
--- /dev/null
+++ b/cl-ironclad
@@ -0,0 +1 @@
+Subproject commit 487858b0fddf9a44d06508a5550e4c447eb7d86a