diff --git a/src/testdir/test_autocmd.vim b/src/testdir/test_autocmd.vim
index 13febb0..eba365e 100644
--- a/src/testdir/test_autocmd.vim
+++ b/src/testdir/test_autocmd.vim
@@ -1157,6 +1157,7 @@
   call setline(1, ['buffer 2', 'line 2', 'line 3', 'line4'])
   call assert_fails(':diffthis', 'E788')
   call assert_equal(1, &diff)
+  set diffopt-=closeoff
   bw!
   call assert_fails(':diffoff!', 'E788')
   bw!
diff --git a/src/version.c b/src/version.c
index 205f2dc..da05b0a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2290,
+/**/
     2289,
 /**/
     2288,