diff --git a/src/testdir/viewdumps.vim b/src/testdir/viewdumps.vim
new file mode 100644
index 0000000..62f7bbe
--- /dev/null
+++ b/src/testdir/viewdumps.vim
@@ -0,0 +1,11 @@
+vim9script
+
+exec 'source ' .. (((cwdpath: string) => cwdpath
+  ->strpart(0, cwdpath->strridx('/vim')))(getcwd()))
+  .. '/vim/src/testdir/commondumps.vim'
+g:Init('\<src\>', 0)
+
+# Match ":language" of runtest.vim.
+language messages C
+
+# vim:fdm=syntax:sw=2:ts=8:noet:nolist:nosta: