diff --git a/src/testdir/test13.in b/src/testdir/test13.in
index cb8a6ff..cbf78c7 100644
--- a/src/testdir/test13.in
+++ b/src/testdir/test13.in
@@ -48,6 +48,12 @@
 :au BufWipeout Xtestje1 buf Xtestje1
 :bwipe
 :w >>test.out
+:only
+:help
+:wincmd w
+:1quit
+:$put ='Final line'
+:$w >>test.out
 :qa!
 ENDTEST
 
diff --git a/src/testdir/test13.ok b/src/testdir/test13.ok
index 0f1fc34..66ebce6 100644
--- a/src/testdir/test13.ok
+++ b/src/testdir/test13.ok
@@ -28,3 +28,4 @@
 	contents
 	contents
 end of testfile
+Final line