diff --git a/.config/vim/ftplugin/bash.vim b/.config/vim/ftplugin/bash.vim
new file mode 100644
index 0000000..c7c929a
--- /dev/null
+++ b/.config/vim/ftplugin/bash.vim
@@ -0,0 +1,2 @@
+" source ./shell.vim (adds `-` to &iskeyword)
+execute "source " .. expand("<sfile>:h") .. "/shell.vim"
diff --git a/.config/vim/ftplugin/shell.vim b/.config/vim/ftplugin/shell.vim
new file mode 100644
index 0000000..eb618f5
--- /dev/null
+++ b/.config/vim/ftplugin/shell.vim
@@ -0,0 +1,2 @@
+" Include `-` in keyword characters since command names can contain them
+setlocal iskeyword+=-
diff --git a/.config/vim/ftplugin/zsh.vim b/.config/vim/ftplugin/zsh.vim
new file mode 100644
index 0000000..c7c929a
--- /dev/null
+++ b/.config/vim/ftplugin/zsh.vim
@@ -0,0 +1,2 @@
+" source ./shell.vim (adds `-` to &iskeyword)
+execute "source " .. expand("<sfile>:h") .. "/shell.vim"