diff --git a/.gitmodules b/.gitmodules
index c88c38b7..c501295c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -11,3 +11,6 @@
 [submodule "zsh/zplug"]
 	path = zsh/zplug
 	url = https://github.com/zplug/zplug
+[submodule "zsh/is_mosh"]
+	path = zsh/is_mosh
+	url = https://github.com/wookayin/is_mosh
diff --git a/install.py b/install.py
index 0dbe5865..8d0a77f7 100755
--- a/install.py
+++ b/install.py
@@ -47,6 +47,7 @@
     # Bins
     '~/.local/bin/dotfiles' : 'bin/dotfiles',
     '~/.local/bin/fasd' : 'zsh/fasd/fasd',
+    '~/.local/bin/is_mosh' : 'zsh/is_mosh/is_mosh',
     '~/.local/bin/imgcat' : 'bin/imgcat',
     '~/.local/bin/imgls' : 'bin/imgls',
     '~/.local/bin/fzf' : '~/.fzf/bin/fzf', # fzf is at $HOME/.fzf
diff --git a/zsh/is_mosh b/zsh/is_mosh
new file mode 160000
index 00000000..6cde1cf5
--- /dev/null
+++ b/zsh/is_mosh
@@ -0,0 +1 @@
+Subproject commit 6cde1cf5d4af45b2f9bcc4267d0beca0b2b61c17