diff --git a/.gitmodules b/.gitmodules
index c26705d..f5fa2d5 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -67,3 +67,6 @@
 [submodule "site-lisp/auto-yasnippet"]
 	path = site-lisp/auto-yasnippet
 	url = https://github.com/abo-abo/auto-yasnippet.git
+[submodule "site-lisp/posframe"]
+	path = site-lisp/posframe
+	url = https://github.com/tumashu/posframe.git
diff --git a/site-lisp/posframe b/site-lisp/posframe
new file mode 160000
index 0000000..3084cb6
--- /dev/null
+++ b/site-lisp/posframe
@@ -0,0 +1 @@
+Subproject commit 3084cb6eb366d26b0f5a4aa9baffb297178be3b8