diff --git a/src/testdir/Makefile b/src/testdir/Makefile
index 57de3ab..c260eb4 100644
--- a/src/testdir/Makefile
+++ b/src/testdir/Makefile
@@ -47,6 +47,8 @@
 .in.out:
 	-rm -f $*.failed test.ok X*
 	cp $*.ok test.ok
+	# Sleep a moment to avoid that the xterm title is messed up
+	@-sleep .2
 	$(VIMPROG) -u unix.vim -U NONE --noplugin -s dotest.in $*.in
 	@/bin/sh -c "if diff test.out $*.ok; \
 		then mv -f test.out $*.out; \