diff --git a/dotfiles/zshrc.d/vmstat.zsh b/dotfiles/zshrc.d/vmstat.zsh
new file mode 100644
index 0000000..c4426a8
--- /dev/null
+++ b/dotfiles/zshrc.d/vmstat.zsh
@@ -0,0 +1,7 @@
+function vmstat {
+  local _extra_args
+  if [ "$(tput cols)" -gt 80 ] ; then
+    _extra_args="-w"
+  fi
+  command vmstat ${_extra_args} "$@"
+}