diff --git a/.gitmodules b/.gitmodules
index f305711..bee4282 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -331,3 +331,6 @@
 [submodule "ruby-slow_enumerator_tools"]
 	path = ruby-slow_enumerator_tools
 	url = ssh://aur@aur.archlinux.org/ruby-slow_enumerator_tools.git
+[submodule "ruby-tty-platform"]
+	path = ruby-tty-platform
+	url = ssh://aur@aur.archlinux.org/ruby-tty-platform.git
diff --git a/ruby-tty-platform b/ruby-tty-platform
new file mode 160000
index 0000000..6a99fce
--- /dev/null
+++ b/ruby-tty-platform
@@ -0,0 +1 @@
+Subproject commit 6a99fceb2ed8704a3e2d9bcb0687a53915a89432