diff --git a/src/testdir/Make_dos.mak b/src/testdir/Make_dos.mak
index 66cf12f..b6aaa6e 100644
--- a/src/testdir/Make_dos.mak
+++ b/src/testdir/Make_dos.mak
@@ -114,4 +114,6 @@
 newtests: $(NEW_TESTS)
 
 .vim.res:
+	@echo "$(VIMPROG)" > vimcmd
 	$(VIMPROG) -u NONE $(NO_PLUGIN) -S runtest.vim $*.vim
+	@del vimcmd