diff --git a/runtime/ftplugin/gleam.vim b/runtime/ftplugin/gleam.vim
new file mode 100644
index 0000000..9ed607c
--- /dev/null
+++ b/runtime/ftplugin/gleam.vim
@@ -0,0 +1,16 @@
+" Vim filetype plugin file
+" Language:    Gleam
+" Maintainer:  Trilowy (https://github.com/trilowy)
+" Last Change: 2024 Oct 13
+
+if exists('b:did_ftplugin')
+  finish
+endif
+let b:did_ftplugin = 1
+
+setlocal comments=://,:///,:////
+setlocal commentstring=//\ %s
+
+let b:undo_ftplugin = "setlocal comments< commentstring<"
+
+" vim: sw=2 sts=2 et