diff --git a/runtime/ftplugin/swig.vim b/runtime/ftplugin/swig.vim
new file mode 100644
index 0000000..506c929
--- /dev/null
+++ b/runtime/ftplugin/swig.vim
@@ -0,0 +1,13 @@
+" Vim filetype plugin file
+" Language:	SWIG
+" Maintainer:	Julien Marrec <julien.marrec 'at' gmail com>
+" Last Change:	2023 November 23
+
+" Only do this when not done yet for this buffer
+if exists("b:did_ftplugin")
+  finish
+endif
+let b:did_ftplugin = 1
+
+let b:undo_ftplugin = "setlocal iskeyword<"
+setlocal iskeyword+=%